The black residue falling from your cat's body is likely fleas. You can examine it by placing a few drops of water on a tissue and checking if it turns red. If it does, your cat needs deworming, which should be done every three months. If it doesn't turn red, it likely has ringworm.



What are those black residues on a cat? They could be flea feces or dead fleas. You can place the residue on a tissue and add a few drops of water to check. If the residue turns red, it indicates fleas. You should deworm your cat promptly, every three months. If it doesn't turn red, it could be ringworm, requiring immediate veterinary treatment.