OK well this has happened before except on both sides of her cheeks.

Her chin is all crusted with dried blood and a lot of her hair is gone in that area. She was out for a month(we originally found her outside). My grandmother found her as a kitten(About when she was 1 1/2) and she died last year so now we have her. She has gotten out a lot and once before a spot about 3/4 of an inch in diameter the fur was gone and in place was dried blood. It eventually healed and about 4 months later the same thing happened on her chin. She isn't showing any signs of discomfort. No itching, twitching and no fleas(were pretty sure) Is this a sickness? Please we need an answer.