Thank you for your question. According to our veterinarians, cutaneous horns are not very common, but when they occur it is often below the claws or nearby on the toes. They can usually be trimmed or sometimes gently peeled away from the skin with your fingers, depending on what your cat is willing to allow. Even if you are able to remove these at home, it’s important to let your veterinarian know about them so they can record this in your cat’s record. Often these growths have no known cause, but sometimes they are related to underlying conditions such as Feline Leukemia Virus, basal cell tumors or other conditions. If they come back, a biopsy and/or follow-up testing is usually recommended.