Symptoms of mild corns are usually manifested as localized skin elevation and thickening. Corns are mainly related to the long-term mechanical friction of the foot skin, and the disease can also be induced by long-term walking and foot deformity. Usually, patients may have localized skin elevation, thickening, mainly manifested as yellow or yellowish keratinous growths, usually soybean-sized, smooth surface cone-shaped keratinous plugs. If the condition is not well controlled, severe pain may occur later when walking or standing. If the above symptoms occur, it is considered to be corns, it is recommended to go to the regular hospital, cooperate with the doctor for treatment, so as to avoid aggravation of the condition.