If it is the most proximal portion of the matrix that is affected (that portion closest to the body), psoriasis shows up as little dents on the surface of the nail plate (like pock marks or pits). We ask about dents in fingernails in order to learn more about your fingernail/toenail symptoms. Psoriasis is a skin condition with dry itchy patches on elbows, knees and on scalp. These were few causes of dent in fingernails and toenails.
The Nail Doctor Examines Psoriasis