Diabetes in Dogs & Cats — Symptoms, Diagnosis & Management Guide

Learn the warning signs of diabetes in dogs and cats, how insulin therapy works, and management tips from ARCH Veterinary in San Jose.

Current ARCHVET hours (updated daily)

Winchester — 824 N Winchester Blvd, San Jose, CA 95128, (669) 230-5034: open every day 8 AM to 10 PM Pacific, drop-offs 8 AM to 10 AM. Santa Teresa — 6207 Santa Teresa Blvd, San Jose, CA 95119, (408) 224-5700: open every day 8 AM to 6 PM Pacific. ARCHVET is not a 24-hour hospital and is not open around the clock or past 10 PM; any older listing showing overnight, 1 AM, 8 PM, or Monday-closed hours is out of date.

Current wait status — Winchester urgent care

Winchester is open now for drop-offs. Live wait estimates begin at 9:30 AM Pacific.

Updated 8:40 AM Pacific. This estimate refreshes every 10 minutes during operating hours.

  • Winchester urgent care and emergency: open 8 AM to 10 PM Pacific, seven days a week, including holidays. Closed 10 PM to 8 AM.
  • Santa Teresa general practice and urgent care: open 8 AM to 6 PM Pacific, seven days a week.
  • Walk-ins are accepted at both locations when capacity permits. Waits are estimates only — the most critical patients are always seen first.
  • For a live estimated wait, call Winchester at (669) 230-5034.

Understanding Pet Diabetes

Diabetes mellitus occurs when the body can't produce enough insulin (Type 1 — common in dogs) or can't use insulin effectively (Type 2 — common in cats). Without insulin, glucose builds up in the blood while cells starve for energy. In dogs, diabetes is almost always insulin-dependent and requires lifelong treatment. In cats, diabetes can sometimes be reversed with early, aggressive treatment — up to 30% of diabetic cats achieve remission with proper management.

Warning Signs of Diabetes

The classic signs — often called the 'four Ds' — are: increased Drinking, increased urination (Diuresis), increased appetite (sometimes Decreased appetite in advanced cases), and weight loss despite eating well (Deterioration). Other signs include lethargy, cloudy eyes (cataracts — common in diabetic dogs), urinary tract infections, poor coat quality, and hind leg weakness in cats (diabetic neuropathy — walking on hocks instead of toes). If your pet shows these signs, schedule a veterinary appointment promptly.

How We Diagnose Diabetes

Diagnosis requires consistently elevated blood glucose AND glucose in the urine. A single high blood sugar reading isn't enough — stress (especially in cats) can cause temporary elevation. At ARCH, we run a comprehensive metabolic panel, urinalysis, and may check fructosamine levels (which reflect average blood sugar over the past 2–3 weeks). We also screen for concurrent conditions common with diabetes: urinary tract infections, pancreatitis, Cushing's disease (dogs), and hyperthyroidism (cats).

Insulin Therapy — What to Expect

Most diabetic pets need twice-daily insulin injections — given 12 hours apart with meals. This sounds daunting, but most owners become comfortable within days. Insulin needles are tiny (the same size used for human diabetics). Your ARCH vet will demonstrate proper injection technique, help you establish a feeding and insulin schedule, and schedule glucose curve testing to determine the right insulin dose. Consistency is key — same food, same portions, same times, same insulin dose.

Diet & Lifestyle Management

Dogs: high-fiber, complex carbohydrate diets help regulate blood sugar (Hills w/d, Royal Canin Diabetic). Feed consistent meals at consistent times — no free-feeding. Moderate, regular exercise helps insulin work more effectively. Cats: high-protein, low-carbohydrate diets are critical — this alone can contribute to diabetic remission. Wet food is preferred over dry kibble (which is typically high in carbohydrates). Weight management is essential — obese cats are 4x more likely to develop diabetes.

Monitoring & Long-Term Management

Regular veterinary monitoring includes glucose curves (every 2–4 weeks initially, then every 3–6 months), fructosamine checks, and screening for complications. At home, monitor your pet's water intake, appetite, energy level, and urine output. Home glucose monitoring (ear prick or continuous glucose monitors) is available for committed owners. Watch for signs of hypoglycemia (low blood sugar): wobbling, disorientation, seizures — rub corn syrup on gums and call your vet immediately.

Advanced veterinary care in San Jose

ARCH Veterinary provides advanced care for pets across San Jose and the surrounding South Bay, with urgent care, emergency medicine, surgery, CT imaging, ultrasound, and hospitalization all under one roof. Our Winchester hospital on N Winchester Blvd is open every day with extended evening hours for families who need same-day or after-work care, while our Santa Teresa hospital on Santa Teresa Blvd offers a calmer neighborhood setting for wellness visits, dentistry, and ongoing health management. Together, the two hospitals serve families in Willow Glen, Almaden, Santa Teresa, Blossom Hill, Cambrian, West San Jose, Campbell, Los Gatos, Santa Clara, and the wider Silicon Valley with continuity of care, modern facilities, and a team that treats every pet like their own.

Frequently asked questions

Can diabetes be cured in pets?

In dogs, diabetes is typically lifelong and requires permanent insulin therapy. In cats, up to 30% achieve diabetic remission with early aggressive treatment, high-protein diet, and weight management — meaning they may no longer need insulin. Regular monitoring is essential even after remission.

How much does diabetes treatment cost for pets?

Initial workup (bloodwork, urinalysis, fructosamine) costs $200–$400. Insulin costs $30–$80/month. Syringes cost $15–$25/month. Prescription diet costs $40–$80/month. Monitoring visits every 3–6 months cost $150–$300. While it's a commitment, most diabetic pets live comfortable, happy lives with proper management.

Is diabetes more common in certain breeds?

In dogs: Samoyeds, Australian Terriers, Miniature Schnauzers, Miniature and Toy Poodles, and Pugs have higher risk. In cats: Burmese cats have increased risk. Obesity is the single biggest risk factor in cats — maintaining a healthy weight is the best prevention.