Onychogryphosis is when your nails grow extra thick and long, kind of like a claw! This can happen because of things like old age, not taking care of your nails, or a problem with your feet. When this happens, it can be hard to cut or trim your nails and they might hurt. To help with onychogryphosis, you can try soaking your feet in warm water, using special nail clippers, or seeing a doctor who can help you take care of your nails.