Finger corns are caused by long-term extrusion or friction of the skin of the finger area. 1. Chicken eye is a common skin disease, occurring in adults, when the finger area of the skin for a long time by friction, extrusion, or long time to engage in heavy physical labor, as well as carrying goods, resulting in local skin compression, will gradually form in the area of the hard conical keratotic hyperplasia, i.e., corns. 2. The clinical manifestations of corns are clearly defined keratinous growths, yellowish or dark yellow, pinhead to broad bean size, round or oval. If there is sweat impregnation in the process of formation, there can be local skin whitening, i.e. soft corns. It is recommended that patients with corns keep the affected area clean and dry in daily life, remove the triggering factors, avoid friction and pressure, and if necessary, go to a regular hospital, under the guidance of the doctor, applying medication corrosion, laser, freezing, surgical excision and other methods of treatment.