The cuticle of the cat's meat pad has hardened and fallen off. You need to check whether there is rupture or bleeding. Clean and disinfect the cat in time to avoid bacterial infection. If there is no rupture, you can apply hand cream or moisturizer to the cat. If there is rupture, You need to go to the hospital to check whether you have a skin infection. Try not to let your cat walk on uneven roads to avoid wear and tear on the pads. Clean the pads regularly to keep them clean.