The moral is to check a cat's claws from time to time and trim them when necessary. I realised that my old cat had a claw problem when I heard the claws clattering against a hard floor. This indicated to me that at least one claw was too long. A cat's claws retract and don't make contact with hard surfaces if the cat is walking normally over the surface. Teeth and claws need to be checked routinely!
You can see from this picture of a cat's ingrowing claw provided by Cuyahoga Falls Veterinary Clinic, how painful it is. It is not that difficult to trim a cat's nails but to trim the nail in the picture will be very difficult and probably or possibly requires a vet to do it. It's a bit late in the day - proactive is best.
|Cat ingrowing claw (nail). Photo copyrightCuyahoga Falls Veterinary Clinic|
This photo has been used with permission for teaching/educational purposes at this website.
Note: Never declaw a cat (see some declaw posters to see why). You don't need to. Evolution (or God depending on your point of view) gave a cat all his or her anatomy for a reason. It is wise and the decent thing to do, to leave it all in place. We shouldn't play god for our convenience.