What it is
Insulin is the hormone that lets sugar from food move out of the blood and into the cells, where it becomes energy. When insulin falls short, the body turns to its own fat and muscle for fuel, which is why a cat can lose weight while eating heartily. The extra sugar draws water with it into the urine, so the cat drinks to keep up.
In cats the condition is linked with carrying extra weight and with getting older, though it can appear in a lean cat too. Over time high blood sugar can weaken the nerves of the back legs, giving a crouched walk on the whole length of the foot.
You may notice it first in the litter box, as the clumps grow bigger and more numerous, or when you find yourself refilling the water bowl more than before.
Signs you may notice
- Drinks much more water
- Urinates more, bigger clumps
- Eats well but loses weight
- Walks low on its heels
- Seems tired, coat looks unkempt
A cat drinks and urinates much more than before, and may eat well yet lose weight. Some cats begin to walk low on their back legs, on their heels.
When to see a vet
Book a visit soon if your cat drinks and urinates more or loses weight. If it vomits, stops eating, turns very weak or seems confused, a vet is needed immediately.
This is general information, not veterinary advice. For your own cat's health, tests and treatment, see a vet.