Toes long hard like callus may be callus, may also be common warts, corns and other diseases caused by. 1. callus: also known as callus, mainly with the foot there is long-term mechanical friction and pressure stimulation, resulting in excessive proliferation of the stratum corneum and caused by common risk factors are foot deformities, walking posture abnormalities, shoes do not fit the foot, and so on. The typical symptom is the presence of hard yellow or waxy yellow plaques, and the local skin is relatively rough and dry. 2. Common warts: This disease is mainly caused by the human papilloma virus, and studies have shown that it can be transmitted through direct or indirect contact. Warts can occur in any part of the body, the local presence of different sizes, surface rough, brown or normal skin color papillomatous growths, and the texture is hard, so some of the patients have toes long hard like callus situation. 3. corns: the occurrence of the disease is also related to mechanical stimulation caused by the proliferation of the stratum corneum. But the main manifestation of the foot there are clear boundaries of keratin proliferation, the center can be seen cone-shaped keratin embolism, walking patients can feel severe pain. It is sometimes mistaken for a callus at the beginning of the disease. There are many reasons why patients have hard calluses on their toes, and they need to go to the hospital in time to clarify the specific causes.