Congenital clubfoot is the most common type of congenital foot deformity, and it can exist alone or in combination with other parts of the congenital deformity. It is more common in males than females, and accounts for half of the cases bilaterally and half unilaterally. Generally, the affected foot has four deformities: (1) forefoot pronation, high arch; (2) heel inversion; (3) ankle horseshoe; (4) calf internal rotation. The typical horseshoe inversion foot is wide at the front, the heel is pointed and small, the medial edge of the foot is short, and the lateral edge is long. There is often a deep transverse skin crease in the center of the foot and one or two deep transverse skin creases above the heel. The skin of the medial aspect of the foot is tense, with contracture of the Achilles tendon and metatarsal tendon membrane, and elasticity of the muscles of the posterior aspect of the calf with thin trachea. When the knee is flexed, the toe of the affected foot is seen to be turned inward, and the position of the outer ankle is more anterior and prominent than normal, while the inner ankle is posterior and inconspicuous. When the patient stands, the deformity of the light foot metatarsal lateral weight-bearing, the heavy foot dorsal lateral weight-bearing, weight-bearing parts of the callus and subcutaneous bursa can appear over time. If the patient walks with a single foot deformity, there is a limp, and if the patient has a double foot deformity, the patient swings to both sides.