Cushings Disease in Cats

Cushing's disease in cats occurs when the body produces too much cortisol, a hormone that helps regulate metabolism, immune function, and the response to stress. In cats, this is uncommon compared to dogs, and when it does appear, it often arises alongside diabetes mellitus—the two conditions can influence one another in ways that make each harder to manage. Owners may notice changes that develop gradually: increased thirst and urination, a pot-bellied appearance, thinning or fragile skin that tears easily, or a coat that becomes thin and dull. Some cats become quieter or seem less able to groom themselves. Because the signs overlap with other conditions seen in older cats, and because Cushing's disease itself is rare in this species, it can take time to recognise the pattern. This page explores the signals that may prompt investigation, what is happening inside the body to produce these changes, how the condition is investigated and confirmed, and the range of approaches that exist for managing it. Each section is designed to help you understand what may be unfolding and what questions may be worth exploring.