Common Degu Illnesses

As a degu owner, you know when your furry friend isn't their usual self. Of course you should always take your degu to a vet as soon as you notice something isn't right, but provided here is a complete table of common degu illnesses to allow you to diagnose and (most importantly) PREVENT these illnesses occurring.

>How to use this table<

Illnesses are sorted by body part, then symptoms, followed by the technical name(s) and cause/prevention information. A prognosis section is also included. Specific anatomy can be found on the appearance page.

JUMP TO:
TEETH- Conditions affecting the molars/incisors
MOUTH- Conditions affecting the soft tissue or whole of the mouth
ALL- Conditions affecting the degu as a whole
DIGESTIVE TRACT- Conditions of the stomach/gut, eating and digestion
EARS- Conditions affecting the aural system
EYES- Conditions of the ocular organs
LIMBS- Conditions affecting the legs, joints and paws
TAIL- Conditions affecting the vertebral appendage
RESPIRATORY TRACT- Conditions of the airways
FUR- Conditions affecting or involving the pelt
SKIN- Conditions affecting the dermal surface
ANY- Unspecific conditions that may affect various areas
REPRODUCTIVE TRACT- Conditions affecting the genitalia or reproductive system

BODY PART SYMPTOMS ILLNESSES CAUSE PREVENTION PROGNOSIS
Teeth Incisor teeth (adult degus) do not have orange enamel but appear white or very pale yellow in colour. May be other symptoms.

Other

Nutritive deficiency- inadequate intake of essential vitamins such as vitamins A, C and D60 (particularly carotenoids and antioxidants) or minerals such as calcium60 and iron187. Lack of fresh vegetable matter can affect the colour of the enamel60.

Other- Severe advanced illness can be linked with pale degu teeth, this is thought to be caused by a link between dietary carotenoids and immune system health.

Check your degu is eating all the food you give them and not just picking out the bits they like. Check the ingredients of the food for the vitamin and mineral content. If you're worried, ask your vet about giving your degu vitamin supplements. Always feed a variety of fresh vegetables weekly. To correct pale teeth it may be beneficial to give foods high in carotenoids such as red pepper, parsley, rosehips, carrot and beetroot, as well as veg high in iron such as broccoli, bok choi, peas and beetroot leaves. Check your degu regularly of signs of tooth whitening and any other signs of illness. (Nutritive deficiency)
REASONABLE

(Other)
POOR to FATAL

Teeth Incisor teeth are orange apart from one which appears white. Degu may otherwise be asymptomatic. Ameloblasts become damaged by trauma, infection60 or a tumor58 and can't produce enamel correctly. This means there is no enamel to form the orange colour on the damaged tooth. This condition may correct itself after a few months depending on the extent of the damage. Remove all potential sources of mouth trauma from the degu's environment. Maintain good cage hygiene and check your degu's mouth regularly to prevent infection and spot any signs of tumors. N/A
Teeth Incisor teeth are long, growing into the soft tissue of the mouth, causing mouth ulcers and lacerations. Difficulty eating, painful mouth. Incisor growth Teeth are continuously growing, but are worn down when the degu gnaws and eats. This condition can occur if the degu is not wearing down their teeth properly or if an opposing incisor is missing. Incisor overgrowth can also occur if the molars are overgrown (see molar malocclusion). Always provide wood or branches to gnaw on and a selection of dried food/treats sparingly. Check teeth regularly for growth/damage. Trim long teeth with clippers (this should be done by a VET). Bathe sore tissue with saline solution daily until healed. See details below for molar malocclusion. GOOD
Teeth Incisor/molar teeth don't meet or line up properly. Incisors look crooked and don't wear down uniformly, or are overgrown. Difficulty eating, may have a painful mouth. Food may drop out of the mouth, or the degu takes a long time to eat. May be excess salivation/dampness around the mouth. Weight loss over time.

Molar malocclusion (misalignment)

This condition is usually congenital, or a result of an incorrect diet (not eating enough fibrous matter) Occasionally degus can develop dental malocclusion as a result of mouth trauma such as a broken jaw56. A diet high in fibre is essential to help prevent molar overgrowth. Ensure degus forage on hay throughout the day and do not over-eat hard feed instead. Limit hard feed to the recommended 10 g portion daily per degu. Do not breed from degus with this condition56. Check degu's teeth regularly and get your vet to trim any long teeth. Degus with dental malocclusion need their teeth trimmed regularly to allow them to eat properly. REASONABLE
Teeth  Degu makes a grinding noise with their teeth. May accompany difficulty eating and a painful mouth. Bruxism

Molar laceration

The grinding noise is caused by the involuntary grinding of the molars (back teeth). This can be caused by the growth of the molars not being worn down properly. This can cause problems as the buccal surface may become sharp and lacerate the cheeks causing painful mouth sores. See molar malocclusion above. Some degus occasionally grind their back teeth together. This is nothing to worry about. However, if the grinding accompanies difficulty eating or a painful mouth you should get a vet to check your degu's molar teeth and file them down. A degu that has this problem will need their teeth checked regularly. GOOD
Teeth Blocked nasal passages, pawing at the nose, nasal discharge, molar problems, difficulty eating and eventually mouth-breathing/bloating. Elodontoma This condition is not uncommon in degus, caused by tumour-like overgrowth of the molar tooth roots into the nasal passages. May be unsymptomatic until sinuses and nasal cavity are impacted. Typically congenital and may be associated with molar malocclusion (see above). Root elongation can also be caused by improper calcium:phosphorous dietary balance188. Do not breed from degus with a history of elodontoma or molar problems. Check the molars regularly and if necessary ask your vet to x-ray the skull to check molar roots. Check the calcium:phosphorous ratio of your degus' hard feed. POOR to FATAL
Teeth Broken teeth, missing teeth, tooth is loose or wobbly. May have difficulty eating. May have bleeding round the gum. Tooth loss

Dental fracture

Trauma to the mouth (such as if the degu falls from something) can break the teeth. Loose teeth may be caused by a fracture below the gum line and the tooth may fall out later. The degu could be prone to brittle teeth (congenital). There may be a nutritive deficiency affecting hardness of the teeth, particularly vitamin D60 and calcium60, 56. Remove all potential sources of trauma from environment. If degu has repeated tooth fracture, ask your vet about supplementing their diet with vitamins. If fracture still occurs do not use the degu to breed from. Keep opposite tooth short by trimming while any missing teeth re-grow. If the root is damaged the tooth may not re-grow, so always check any shed teeth for signs of root. GOOD
BODY PART SYMPTOMS ILLNESSES CAUSE PREVENTION PROGNOSIS
Mouth Degu has a sore, painful mouth. Oozing from mouth. Loss of appetite/inability to eat, chew or groom  properly.  May have a smelly mouth. Excess salivation or dampness around mouth. Bruxism

Mouth ulcer

Mouth infection

Bruxism/molar malocclusion- see teeth section above.

Ulcers/infection- caused by poor oral hygiene, incorrect diet or infected laceration. May be a combination of this and molar laceration.

Check molar growth regularly.  Maintain good cage/feed hygiene. Ensure your degu is able to eat enough and that they are eating enough hay throughout the day- restrict hard feed if necessary. REASONABLE
Mouth Degu is gasping, sucking air in through the mouth, reluctant to eat or take fluids. Mouth breathing

Elodontoma

Sinus infection

Mouth breathing is the process by which degus attempt to suck in air through the mouth due to obstruction in the nasal passages. Air ends up in the stomach and trapped in the intestines, causing excessive bloating. Degus do not usually recover from this stage. Monitor your degu's teeth regularly, if necessary ask your vet to x-ray the skull to monitor molar tooth roots (elodontoma). Maintain good cage hygiene to help prevent sinus infections. POOR TO FATAL
Mouth Degu has blood around their gums. Painful mouth. Mouth trauma Trauma to degu's mouth. See tooth loss section above. Remove all potential sources of trauma from environment. Bathe any fresh wound in saline solution daily until healed. GOOD
BODY PART SYMPTOMS ILLNESSES CAUSE PREVENTION PROGNOSIS
All Degu does not appear to be their usual self. Unresponsive, hunched up, fur ruffled, generally looks unwell. Often accompanies other symptoms of illness. Lethargy Lethargy nearly always accompanies another illness. Often it is the first indicator to you that your degu is unwell, but is normally shown in advanced or severe illness. Lethargy is the body's way of attempting to cope, by shutting down non-essential systems when the illness has overloaded the degus body. Depends on the illness. Regularly check your degu for signs of disease and avoid letting conditions cause lethargy where possible. Don't handle a lethargic degu more than necessary and avoid stressing.  POOR
All Extreme lethargy, degu appears dead. Feels very hot to the touch, ruffled fur. Heatstroke Degu's cage placed in a hot room/in direct sunlight. Water supply restricted, inadequate ventilation. Never place cage in direct sunlight or a hot room. On hot days, move to a cooler part of the house and ensure adequate ventilation. Ensure constant supply of fresh water. A degu with heatstroke should be submerged in cool water (apart from head) for a few minutes56 to reduce temperature. Seek veterinary attention immediately. POOR to FATAL
All Excessive drinking. Large water bottle needs to be refilled approximately daily for one degu. Diabetes

Diet alteration

Dehydration

Kidney disease (Nephritis)

Diabetes- mostly congenital and often triggered by regular feeding of sugar-containing foods.

Diet alteration- increases in the amount of protein a degu consumes can increase their drinking behaviour42.

Dehydration- degu is too hot and does not have access to enough drinking water.

Nephritis- often occurs with age, cancer. Leads to kidney failure.

Do not breed from degus with a history of diabetes. Do not feed degus sugar-containing foods on a regular basis. Cut out all sugar from diabetic degu's diets. Avoid sudden diet changes and avoid feeding high-protein foods on a regular basis. Always provide good access to clean, fresh drinking water and do not place your degu's cage in a hot room.  (Diabetes)
POOR

(Diet alteration)
GOOD

(Dehydration) REASONABLE to FATAL

(Nephritis) FATAL

All Excessive urination Diabetes

Kidney disease (Nephritis)

Incontinence

Diabetes- mostly congenital and often triggered by regular feeding of sugar-containing foods.

Nephritis- often occurs with age, cancer. Leads to kidney failure.

Incontinence- may be congenital and caused by a weak bladder, often age-related.

Do not mistake any of these conditions for scent marking, which degus frequently perform by passing small amounts of urine in particular areas.

Do not breed from degus with a history of diabetes. Do not feed degus sugar containing foods on a regular basis. Cut out all sugar from diabetic degu's diets. Do not breed from degus with a history of incontinence. (Diabetes)
POOR

(Nephritis) FATAL

(Incontinence)
GOOD

All Lethargy, hunched up, ruffled fur. May appear straining to pass feces. Defecates less often. Droppings appear small, black and very hard. Constipation Caused by insufficient water intake, dehydration, general illness, intestinal parasites56. Do not allow degus to overheat, provide a constant supply of fresh drinking water. Maintain good cage hygiene and a good diet. REASONABLE to POOR
All Lethargy, soft/wet feces, dehydration, weight loss, hunched up, ruffled fur. Diarrhea General illness, intestinal parasites56, gastrointestinal infection, liver failure, contaminated water supply. Maintain good cage hygiene, change water on a regular basis, isolate sick degu from others. Seek veterinary attention immediately. REASONABLE to POOR
All Degu appears grossly overweight/fat, weighs a lot more than is normal, difficulty moving, lack of activity. Obesity

Hepatitis

Diabetes

Obesity- overfeeding/unrestricted food supply. Feeding wrong diet. Also caused by other conditions such as hepatitis and diabetes24b.

Hepatitis- decreased liver function, diet too high in protein and/or fat.

Diabetes- mostly congenital and often triggered by regular feeding of sugar-containing foods.

Moderate the amount of food your degus are given to the recommended 10 g per degu per day, do not supply hard feed ad lib. Do not feed diets high in protein/fat (avoid diets containing nuts and seeds). Do not feed fatty or protein rich foods on a regular basis/in large amounts. Do not feed sugar containing foods on a regular basis. Do not breed from degus with a history of diabetes. Remember that if your degu is female and has gained weight quickly, she could be pregnant. Maintain good activity/exercise levels by providing a solid running wheel and daily free time out of the cage. POOR to FATAL
All Degu appears very thin/skeletal, bones prominent, may be lethargic, weighs much less than is normal. Anorexia Various illnesses including internal parasites, hormonal imbalance, molar/teeth problems and appetite loss. Also caused by inadequate diet and/or vitamin C defficiency63. Check your degus regularly for signs of disease. An anorexic degu should be fed more than usual in order to encourage weight gain, and the diet should be checked for vitamin C content and changed if necessary. Always ask your vet to check the molars to be sure there is no underlying teeth problem. POOR
All Lack of coordination, degu frequently bumps into objects, falls over, is unable to right itself, doesn't walk in a straight line.

Stroke

Inner ear infection

Cataracts- brought on by diabetes24b, is also congenital or a combination of both. Caused by sorbitol build up and/or structural deformity.

Stroke- caused by cerebral haematoma (vessel rupture) or embolisation (particles blocking cerebral blood supply). Usually factor of old age or obesity, occasionally neurological trauma at any age or congenital defect in young degus.

Infection- poor cage hygiene, foreign body inside ear, laceration in ear.

Do not allow degus to develop diabetes. Do not breed from degus with a history of cataracts or stroke at a young age. Avoid feeding foods containing sugar, fat or protein in large amounts or on a regular basis. Do not prolong unnecessary suffering of a degu that has suffered a severe stroke. Maintain good cage hygiene.  (Cataracts)
REASONABLE

(Stroke)
FATAL

(Infection)
GOOD to REASONABLE 

All Degu has difficulty moving, appears very stiff, may be in pain, avoids moving or moves very slowly. Arthritis Old age and general joint degeneration.  Can be a congenital problem if developed at a young age. Do not breed from degus with a history of early onset arthritis.  POOR
All Symptoms are unclear, general lethargy, loss of appetite and unresponsiveness. Rapid weight loss. May vary depending on location. Cancer

Hepatoma

Carcinoma

Old age, contact with carcinogens. May have a congenital element. A variety of carcinomas and metastases have been identified in the degu118. None in advanced stages of illness (usually when symptoms detectable). Do not breed from a degu with a history of cancer. FATAL
All Sudden death of female degu during late pregnancy. Pregnancy toxaemia Exact cause not currently known, but often occurs in female degus with cataracts36 Never breed from a female degu with cataracts. FATAL
BODY PART SYMPTOMS ILLNESSES CAUSE PREVENTION PROGNOSIS
Digestive Tract Distended stomach, bloating, lethargy. Degu appears fatter than normal, may show pain response when picked up. Gastrointestinal bloating

Pregnancy

Bloating- unsanitary living conditions, stress, feeding too much green vegetable matter. May also be caused by protozoal parasite infection56. Bloating develops secondary to mouth-breathing (see mouth section above).

Pregnancy- contact with male degus.

Maintain good cage hygiene, avoid unnecessary stress, feed fresh greens in small amounts twice a week. Isolate infected degus. Avoid handling bloated degus, if lethargic seek veterinary attention immediately. GOOD to POOR
Digestive Tract Degu is not eating, not interested in food. May be lethargic. Loss of appetite Various reasons. If degu is otherwise asymptomatic, cause could be mouth trouble such as infection or bruxism (see mouth section), or bad food. Maintain good cage/feed hygiene. Check your degus teeth regularly for broken/loose teeth or signs of infection, ulcers and molar growth. Discard feed that has a musty smell or has been stored in the open/in a damp environment. Monitor degu that is not eating for other potential symptoms. N/A (variable)
BODY PART SYMPTOMS ILLNESSES CAUSE PREVENTION PROGNOSIS
Ears Ear scratching more frequent than normal. Continual head-shaking. Loss of balance. Avoids having ear touched. Inner ear infection

Parasitic ear mites

Infection- poor cage hygiene, foreign body or laceration inside ear.

Mites- contamination from other degus, transmitted from infected hay.

Maintain good cage hygiene. Quarantine new degus and isolate infected degus. Treat hay that is brought from an open bale before feeding. GOOD to REASONABLE
BODY PART SYMPTOMS ILLNESSES CAUSE PREVENTION PROGNOSIS
Eyes Eyes appear cloudy, seem to have cotton-wool like substance over lens. Spots appear bilateral and cortical36 and vary from small areas to completely covering the lens36. Degu has difficulty with vision, or discoordination.   Brought on by diabetes24b, is also congenital or a combination of both. Caused by sorbitol build up and/or structural deformity in the lens. Do not allow degus to develop diabetes. Do not breed from degus with a history of cataracts, particularly females as sudden death can occur in late pregnancy36 (see pregancy toxaemia). Avoid feeding foods containing sugar but feeding veg containing antioxidants may be beneficial111. REASONABLE
Eyes Eye(s) appear to have a red spot in the centre. Vision and/or coordination may be affected.
Caused by severe/sudden trauma to the head. Redness due to rupture of blood vessels inside the eye. Remove all potential sources of danger from environment. REASONABLE
Eyes Eye(s) appear closed, swollen. Discharge from/around eye, weeping eye. Frequent washing/rubbing of eye. Eye infection

Corneal irritation

Sinus infection

Injury to eye, foreign body in eye/scratched eye, or infection of the sinus/lacrymal ducts. Poor cage hygiene. Maintain good cage hygiene and remove all sharp corners/points from environment. Bathe sticky eyes in warm water only (boil water first to sterilise and allow to cool) and cotton bud twice daily, treat with antibiotics where necessary. It may be beneficial to place the degu in dark room56. Do not stress. GOOD to REASONABLE
BODY PART SYMPTOMS ILLNESSES CAUSE PREVENTION PROGNOSIS
Limbs Degu limping, holding one foot up when walking, painful to touch leg, less mobile than usual. Lameness Various trauma to legs including dangerous wheels, falls, sprains and strains during exercise, broken bones. Never use a wire frame/open spoke wheel. Remove all other potential hazards from cage. Restrict activity of a lame degu and avoid handling. Broken bones will often heal themselves with cage rest (see fractures section).  GOOD to REASONABLE
Limbs Sore feet, ulcertation on soles, lameness, not moving around as much as normal or irregular movement. Pododermatitis (Bumblefoot) Repeated abrasion of the soles of the feet and/or standing on high-pressure surfaces (e.g. mesh) for long periods. This condition is usually caused by degus walking on exposed wire mesh floors of cages over long periods of time. Can be aggravated by poor cage hygiene and possible link with diabetes. Cover all exposed mesh surfaces with lino or something similar. Be sure to use a solid based cage. Maintain good cage hygiene. Treat sore feet with saline solution to prevent infection. It may also be beneficial to rub affected areas (unbroken skin only) with evening primrose oil or sunflower oil86. GOOD
Limbs Degu is not walking correctly, may avoid using certain areas of foot. Limping, getting caught on fabric/carpets, or possibly accidentally scratching other degus. Nail growth Lack of rough surfaces to wear nails down. Rear nails often grow more rapidly and wild degus encourage nail wear through digging. Where possible, provide sandy substrate for degus to dig in or run on. Long nails can be worn down by placing a small square of fine sandpaper in the running wheel for a few days- remove after this to avoid sore feet. GOOD
Limbs Bleeding from/around nail. Toe may be swollen and infected. Avoidance of weight-bearing on affected foot, limping. Avoids having area touched. Nail(s) missing. Torn nail

Infected nail

Trauma to nail, may become infected through poor cage hygiene. Long nails may become torn if caught on fabric/carpet. Remove all potential sources of damage from environment. Maintain good cage hygiene. Bathe affected toe daily in saline solution until healed.  GOOD
BODY PART SYMPTOMS ILLNESSES CAUSE PREVENTION PROGNOSIS
Tail Part of tail missing, tail appears shorter than normal or stump-like. Tail hanging off or broken.
(Also see here)
Various, degus shed their tail as an anti-predatory mechanism when restrained by the tail. Could also be caused by trapping the tail in something, such as a wheel. Remove all hazards from environment. Do not hold degu by the tail (except near the base of the tail). Avoid using wheels with spokes in the cage. A degu will bite off the remaining part of the tail itself. The tail will never re-grow. GOOD
BODY PART SYMPTOMS ILLNESSES CAUSE PREVENTION PROGNOSIS
Respiratory tract Difficulty breathing. Audible wheezing/rattling sound to breathing at rest/after exercise. Frequent sneezing. May be discharge from nose/mouth. Lethargic. Respiratory infection (Pneumonia)

Allergy

Pneumonia- often brought on secondary to allergy, also caused by exposure to drafts and/or cold temperatures or damp environments.

Allergy- exposure to dust or other allergens/respiratory irritants such as talc.

Never place degu's cage in a draft or cold/damp room. Isolate infected degu. Some degus are allergic to certain irritants, particularly dust. Buy dust extracted bedding and hay, substitute sawdust for paper litter. Never use talc in dust bath as not only is it a respiratory irritant, it may also be a carcinogenic (cancer causing) agent55. (Pneumonia)
POOR

(Allergy)
GOOD

BODY PART SYMPTOMS ILLNESSES CAUSE PREVENTION PROGNOSIS
Fur Hair falls out in large quantities, large areas of baldness, patchy fur coverage. Allopaetia

Stress

Allergy

External parasites

Allopaetia- not common in degus but can occur due to a poor diet or lack of iron in the diet. Can be congenital and brought on by stress. May be a thyroid problem71.

Stress- numerous causes, specific to each individual.

Allergy- caused by exposure to an allergen specific to the degu. Could be a wide variety of allergenic substances such as disinfectant, sawdust, or dietary component.

Parasites- usually mites or fungal ringworm affecting the skin. Often contracted through direct contact with infected degu/cage or transmitted from hay.

Quarantine new degus before allowing contact. Treat hay that is brought from an open bale before feeding. Isolate infected degu. Determine source of allergen by process of elimination and remove from environment. Check degus diet and change if necessary. Do not breed from a degu with a history of allopaetia. Determine the source of stress and remove from the degu's environment. Remember that fur shedding is perfectly normal during shedding season, but your degu should never appear bald. (Allopaetia)
GOOD to REASONABLE

(Stress)
REASONABLE to POOR

(Allergy)
GOOD to REASONABLE

(Parasites)
GOOD to REASONABLE

Fur Bald patches appear on the degu, especially around the forepaws, forelegs, hind paws or around the eyes and back/head, possibly on the tail. Fur-pulling


This is a common behavioural disorder or 'stereotypy' in degus, formed due to environmental stress of some kind. The degu will sit and gently pull out hairs with the teeth during grooming bouts (themselves or cagemates). Reduce stressful exposure to the degu's environment, for example this could be caused by too small a cage size, cage visited by dog or cat, moving the position of the cage, loss of a cagemate, being housed in isolation, not let out for exercise often- there are many sources. See the fur-pulling treatment guide for further info. N/A 
Fur Dull, dry coat, fur matted and sticking up in places. Coat appears greasy, may be smelly. Nutritive deficiency

Obesity

Dental fracture/malocclusion

Various causes depending on circumstance. Degu may be unable to groom themselves properly due to mechanical issues, or diet is inadequate. May also be caused by lack of dust bath access. Always provide regular access to a dustbath, at least twice a week. Always check to make sure your degu is able to groom themselves properly and look for any other signs of illness. Ensure your degus are getting a correct diet. N/A
BODY PART SYMPTOMS ILLNESSES CAUSE PREVENTION PROGNOSIS
Skin Degu appears to be scratching self more than normal. May be (patchy) fur loss. Dry, flaky skin or areas of moist skin. Skin appears sore/red. External parasites

Allergy
()

Hormonal imbalance

Parasites- usually mites or fungal ringworm affecting the skin. Often contracted through direct contact with infected degu/cage or transmitted from hay.

Dermatitis- caused by exposure to an allergen specific to the degu. Could be a wide variety of allergenic substances such as disinfectant, sawdust, or dietary component.

Hormonal imbalance- triggered when the normal levels of hormones are upset, for a variety of reasons including depression, infertility, stress, etc.

Quarantine new degus before allowing contact. Treat hay that is brought from an open bale before feeding. Isolate infected degu. Determine source of allergen by process of elimination and remove from environment. Treat dry skin with mild moisturiser and moist skin with saline solution daily until healed. Avoid potential causes of hormone imbalance such as depression and stress. Supplement an itchy degu's diet omega 3 fatty acids, such as linolenic acid70 (ask your vet). GOOD to REASONABLE
BODY PART SYMPTOMS ILLNESSES CAUSE PREVENTION PROGNOSIS
Any Smelly area, red, sore, may be swollen. Painful to touch. May be oozing, or have a pussy discharge. Infection Bacterial growth on a wound/sore. Caused by poor hygiene and lack of attention to wound. Maintain good cage hygiene, examine degus regularly for cuts and scrapes. Treat an infected wound with saline solution daily until healed.  GOOD to REASONABLE
Any Open wound, sore, bleeding area, blood stained fur, cut/scratch, degu grooming/licking area, painful to touch. Laceration Various trauma including accidents, fighting, excess scratching or long nails. Check nail growth regularly. Examine itchy degu for external parasites or dermatitis. Remove all sharp objects/surfaces from environment. Separate fighting degus. Avoid touching affected area, bathe wound daily in saline solution until healed. Depends on deepness/severity
Any Blood loss from any part, degu avoiding area, in pain. Bleeding Various trauma. As for laceration, avoid touching area directly. In severe cases, apply gentle but firm pressure to help stop bleeding. Bathe wound daily in saline solution until healed. Depends on deepness/severity
Any Lethargy, swelling, pain, loss of appetite, degu is immobile. Internal bleeding Severe trauma that may involve internal organs. Internal rupture of vital tissues. Remove all potential sources of trauma from environment. Do not handle a degu with suspected internal injuries and monitor regularly. Do not prolong any unnecessary suffering. POOR to FATAL
Any Swellings or hard growths appear, lumps or bumps can be felt. Swellings grow rapidly. Lethargy, weight loss and loss of appetite may accompany these symptoms. Cancer

Carcinoma

Tumors can be caused by a variety of things. Can be congenital, but risk of cancer increases rapidly with old age. Tumors may also be triggered by inhalation or ingestion of a carcinogenic substance. Prevent all exposure to known and suspected carcinogens such as tobacco and talc. Do not breed from degus with a history of cancer or unexplained growths. In advanced cases, do not prolong unnecessary suffering. FATAL
Any Unable to move, may appear to be dead. Limb(s) immobile, dragging/lifeless limb or tail, cold limb(s).  Paralysis Caused by stroke or nerve damage, or trauma to limb/tail. Remove potential sources of trauma from environment. In severe cases, do not prolong unnecessary suffering. (Depending on affected part) REASONABLE to FATAL 
Any Degu may be limping, adverse reaction to handling, pain, may have cold limb(s) or difficulty breathing. Fractures Various trauma and accidents. Remove all hazards from environment. Do not handle degu and restrict activity by cage rest. Isolate from other degus where possible. If fracture is internal or severe, do not prolong unnecessary suffering. (Depending on severity) REASONABLE to FATAL 
Any Object sticking into skin or eye. Wounds do not heal and take much longer than usual to close. Infection not clearing.  Foreign body  Caused by an object becoming lodged in the degu, preventing normal healing from occurring. Remove all potential sources of danger from environment. Ask your veterinarian to remove the foreign body, then treat the wound as normal. REASONABLE 
BODY PART SYMPTOMS ILLNESSES CAUSE PREVENTION PROGNOSIS
Reproductive tract Male degu cannot retract penis, penis and sheath swollen and sore, degu constantly cleaning area. Prolapsed penis

Infection in the penis/sheath or trauma causing swelling and prolapse. Maintain good cage hygiene. Seek veterinary advice immediately, treatment requires antibiotics, anti-inflammatory drugs and possible surgery. REASONABLE to POOR
Reproductive tract Pregnant female appears ill and may be bleeding from the vagina. Traces of blood and/or immature foetuses found in cage.  

Abortion

 

Various, including trauma to abdomen, stress and infection. Avoid handling females in late pregnancy. Remove all potential sources of trauma and restrict amount of climbing/jumping activity in late pregnancy. Maintain good cage hygiene. REASONABLE
Reproductive tract Pregnant female has been trying to give birth to one pup for more than two hours with no signs of progress. Breech birth, abnormal foetus Incorrect presentation of the pup to the delivery passage, causing pup to become stuck and blocking further pups from being delivered. None. Take to veterinarian immediately. POOR
Reproductive tract Male has mated repeatedly with female(s) but after at least 90 days there are no signs of pregnancy or pups.  Reproductive failure  Can be triggered by excess vitamin C supplementation in the male's diet63, sperm degeneration in old age or a congenital abnormality. Ensure the correct dosage of vitamin C is calculated prior to supplementation. If in doubt, feed a ready-supplemented guinea pig food. Avoid supplementing drinking water where dosage is hard to quantify. GOOD 
BODY PART SYMPTOMS ILLNESSES CAUSE PREVENTION PROGNOSIS
Owner Talks constantly about degus. Has pictures of degus everywhere. Obsessed. Deguitis Frequent exposure to degus over a set length of time. None- restricting access to degus after onset of Deguitis can prove fatal. Do not visit Chile. A long and happy life surrounded by degus...