Corns are a kind of limited keratotic hyperplasia damage, mostly caused by prolonged skin pressure or friction. Its initial symptoms are not obvious, mainly manifested as local epidermal thickening, pain like pins and needles, localized skin bulging and so on. Corns can be divided into hard corns and soft corns. The former occurs on the soles of the feet and the backs of the toes, while the latter occurs between the toes. In the early stage of the disease, the damage of corns to the skin is mild, sometimes without obvious symptoms, sometimes in the local skin bulging or skin thickening, thus causing a slight needle-like stinging sensation. In the early stage of the disease, the symptoms of corns are mild and the damage to the skin is small, and can be treated by applying corns cream under the guidance of the physician. However, there is a possibility of recurrence of corns. After the treatment, in order to consolidate the therapeutic effect, appropriate preventive measures should be taken, such as wearing loose shoes as much as possible and avoiding wearing high heels for a long time. If the initial symptoms of corns appear, you should go to the hospital in time for examination and cooperate with the physician to carry out the treatment as soon as possible to avoid delaying the condition, in order to prevent the aggravation of corns, which will affect the health of the feet.