Q. I have a male cat and he's roughly around 2 years old and he has lost over half of his fur. He looks like a lion because of his missing fur.
DR. CHRISTIE LONG, D.V.M., C.V.A.
A. Hair loss in cats can be due to many thing. The first place to start is to look for external parasites (fleas, mites) and fungal disease (ringworm). If those aren't the problem he may have allergies. If the fur is lost due to over-grooming, this can be due to pain or behavioral/stress issues. And finally there may be hormonal issues going on that are causing the hair loss. Blood work can help figure that out.