Dehydration in cats
Dehydration happens when your cat doesn't drink enough fluid to make up for what their body is losing. Untreated dehydration is life-threatening. Cats of any breed or sex may become dehydrated, but kittens, older cats and cats with other illnesses are most at risk.
Cats become dehydrated when the amount of fluid they take into their body is less than the amount they lose in urine, faeces (poo), panting, and vomit (sickness). Mild dehydration is easily corrected when your cat drinks more. But dehydration can also be a symptom or cause of serious illness. If left untreated, severe dehydration leads to organ damage and eventually organ failure. Talk to a vet as soon as possible if your cat refuses to eat or drink and/or is unable to keep fluids down.