When we talk about common problems in cats, many times we're looking at their skin and hair coat because that's what you see. And you have to, there could be problems that could be either from parasitic problems or fleas or ticks or something that's on the cat or something from inside the cat that's causing the problem to show up on the skin. So if you can identify which one you're dealing with, a lot of times treatment is a lot easier. A common problem, the most common problem I see with cats that are outside during the summer in this area are just fleas. Cats has a flea bite allergy, might have little bumps, scabs along it's back because it's been licking or chewing at that area or just having a real problem with fleas or ear mites might be another problem that would have a common skin, it's not really a skin problem because it's in the ear but because a cat might be scratching it's ears a lot, it will become a skin problem because you see these scabs on the skin. Other skin problems might be an autoimmune disease, it's called rodent ulcer, it's an ulcerative problem that happens around the lips and the mouth, the cat under the chin, that's very common. Many times when a cat uses and starts licking itself and having hair loss, the tongue is like sandpaper so when you have a situation where the cat's over licking or over grooming they can really cause a lot of problems with not just taking the hair off but if it continues then the skin gets raw and ulcerative and you have a real serious problem that way that you need to have him stop licking but until you know why he's licking or chewing at himself, it can get very frustrating trying to treat the skin disease when it might not actually be a disease, it might be behavioral issue that he's licking a lot then he's causing a problem that way.