Common Degu Health Issues (Diabetes Is the One to Really Understand)

Degus carry one health risk that's unusual among small pets, and understanding it should shape your entire approach to feeding this species from day one.

Diabetes Mellitus

This is the defining health issue for degus specifically. Unlike most small mammals, degus have a genuine genetic predisposition toward diabetes, they are naturally insulin-resistant, and even small amounts of fruit, carrot, peas, corn, or sugary treats can trigger the disease. Veterinary literature specifically flags degus as a species where this predisposition creates real, ongoing management challenges.

Watch for: increased drinking and urination, weight changes, cloudy eyes from cataracts, thinning coat, and lethargy.

See a vet at the first sign. Once diabetes develops, it can be managed but not cured, and prevent it entirely with a strict sugar-free, fruit-free diet built around hay and a low-sugar pellet.

Dental Disease

The most common reason degus actually see a vet. Continuously growing teeth need constant wear from gnawing and hay consumption, and molar malocclusion specifically is the most frequently diagnosed dental disorder in this species.

Watch for: drooling or a wet chin, dropping food while eating, weight loss, and watery eyes, healthy degu teeth should look orange, not white.

See a vet, treatment typically means filing under anesthesia. Prevent with unlimited grass hay and genuine gnawing material.

Bumblefoot (Pododermatitis)

Red, swollen, or scabbed footpads from standing on wire flooring. Manageable at home early by switching to solid flooring, an infected case needs a vet.

Respiratory Infection

From dusty bedding, ammonia buildup, or poor ventilation. See a vet, and prevent with low-dust bedding and regular, thorough cleaning.

Heatstroke

Degus tolerate heat poorly and should be kept below about 77°F, out of direct sun. This is an emergency.

Two More to Know About

Vitamin A deficiency and liver disease are two more conditions degu keepers should learn to recognize, alongside diabetes, tail loss, heat stroke and respiratory infection. Degus are a relatively new pet species and the veterinary picture is still filling in, which is the argument for registering with an exotics vet who actually sees them rather than finding one during an emergency.

The Husbandry Pattern Worth Remembering

Sugar and fruit in the diet cause the diabetes that's genuinely this species' signature health risk. Insufficient hay causes the dental disease that's the most common reason for a vet visit. Wire flooring causes bumblefoot. And dusty bedding causes respiratory infection. Diet discipline specifically, more than with almost any other small pet, is the single biggest lever for keeping a degu healthy long-term.

When to See a Vet

See a vet immediately for signs of heatstroke or a sudden increase in drinking and urination, don't wait on either. Book a routine visit promptly for drooling or dropped food, a footpad sore that isn't improving, or persistent lethargy.

If you're also weighing a gerbil, its most common health issue looks nothing like this one: the gerbil health issues guide has it, and Two Pets Where You're Really Buying a Pair sets the two side by side.

Sources & Further Reading