The long fingers similar to corns may be due to callus, common warts, corns and other factors. 1. callus: commonly known as “callus”, is due to the local skin long-term friction, resulting in local keratinization hyperkeratosis, thickening of the formation of the performance of yellow hyperplasia plaque, the middle of the thicker, the edge of the thinner, the border is not clear, the texture of the hard, the local skin from the friction of the role of the damage, the majority of the patients do not have obvious self-conscious symptoms. 2. common warts: is due to human papilloma virus infection caused by benign proliferative disease, good in the fingers, the back of the hand and other parts of the manifestation of gray cauliflower, papilloma-like change, surface rough, touch hard. The actual warts can be a part of the normal warts, and can be eliminated through treatment. 3. Chicken eye: Chicken eye occurs in the foot parts of the pressure, the hand less appear, manifested as a conical cuticle thickening, can have pressure pain. Fingers long similar to corns may also be due to other factors, it is recommended that patients seek medical attention in a timely manner, in order to clarify the cause of targeted treatment.