What happened to the bald patch on the cat’s head?

There are different reasons for a small patch of baldness on a cat’s head and there are two possible conditions. Firstly, skin disease, if the cat has a skin disease it is the same as us growing moss, in addition to losing hair, the cat will also feel itchy, this needs to be taken to the hospital for medical attention and medication. Secondly, it may be due to trauma resulting in scabs falling off and then a piece of hair being shed.