This about the reason for a healthy cat having a bald belly. It is common sense really. Classic example of a bald belly caused by overgrooming. Image: Reddit user: u/Kimimyu   90% of cases of baldness on the belly are due to overgrooming by the cat themselves. It is called 'barbering' as it is as if the cat has gone to the barbers for a No. 1. Self-grooming is a pleasant experience for a domestic cat and the belly is easily accessible.  It helps to counteract the negative emotions caused by stress. Therefore, the cause is stress. What has caused the stress? It is down to the owner to understand how and when cats can be stressed and eliminate those causes. The link below goes to pages on how stress can be caused: Cat stress That is about it. Or at least that is the first thing that the cat's owner should do to stop barbering. If there is no apparent stress, I'd watch the cat and look for overgrooming. No overgrooming? Look for ill health. But this cat looks healthy, and