[header] How to diagnose feline skin problems [title] Look for wounds. [step] Wounds might be painful, moist, oozing, or discharging. Alternately, they might already by scarred over, and you might find only spots or scabs left behind by a nasty feline skin problem. 
[substeps] When you detect a wound on your cat, monitor it regularly. If it changes color or begins to ooze, stink, or discharge, the wound is infected.