That description helped! If it only effecting certain fingers, you might want to see your internist as sometimes, this is due to some sort of internal medical problem. A friend of mine has this on all the fingers of her right hand, but not the thumb. She ended up having to have heart by-pass surgery. You might also want to see a dermatologist to be sure it isn't some sort of infection that I don't now about. Some infections lie deep into the nail bed and may seem like nothing, but can cause nail plate disfigurement. I would get it checked out if I were you.