"i got a splinter under my fingernail from a thorn i could never get out i have tough dry skin forming there now under nail and at end of finger?Dermatology 18 years experience Depends There are many causes of thick skin, from psoriasis to certain genetic conditions with hyperkeratosis Thick skin in one area could be simply callouses or warts Thick skin all over the hand can sometimes impede Periungual warts form around your fingernails or toenails They start small, about the size of a pinhead, and slowly grow to rough, dirtylooking bumps that can resemble cauliflower
12 Nail Changes A Dermatologist Should Examine