Infantile thumb deformities usually include congenital trigger finger deformity, syndactyly, polydactyly, or congenital thumb hypoplasia, which are usually treated surgically. Trigger finger deformities caused by congenital stenosing tenosynovitis are usually not treated conservatively and should be treated surgically. Usually, tendon sheath release surgery is required for treatment. Specific treatment should still be based on the doctor’s recommendation. Syndactyly, the most common congenital deformity of the hand, has a genetic component. Surgery is usually appropriate after preschool age. Early surgery is not advisable. If syndactyly is severe or significantly affects the function of the hand, surgery should be performed early (at about 2 years of age) so as not to affect the development of the hand and the upper limbs; if syndactyly is mild and functions well, surgery can be delayed (in the teenage years) or not performed. Surgery for polydactyly should be performed before school age. If the operation affects the development of the healthy finger, the operation can be performed after the development of the healthy finger is basically normal. Congenital thumb hypoplasia is treated with different surgeries depending on the degree of thumb hypoplasia. Finger deformity generally need surgery for orthopedic treatment, and to do early detection and early treatment, postoperative care should be adjusted in a timely manner, to avoid the later recurrence of finger deformity.