cat drinking

Why Is My Cat Drinking So Much Water? Signs, Causes, and When to Act

By Alex Wells / May 7, 2026

If your cat is drinking more water than usual, the cause may be related to diet, warm weather, or activity, but it can also be linked to medical concerns such as hyperthyroidism, chronic kidney disease, or diabetes mellitus. Cat veterinarians can evaluate changes in water intake, litter box habits, weight, appetite, and behavior to determine…