If your cat is a boy he probably has a urinary infection or has developed crystals in his urethra its really painful for the cat they become blocked with the crystals and can't pee if not treated they'll die so hurry fast if you love your cat
Why Is My Cat Constantly Licking Himself And Crying?
The first thing I would do is take him/her to the vet. The cat may have a small skin condition.
