Thumb fracture is divided into two categories, the symptoms are not exactly the same, closed thumb fracture symptoms are: 1, there is a clear traumatic experience, thumb trauma after the rapid emergence of thumb swelling, skin ecchymosis 2-3 days after the fracture, distal section of the fracture accompanied by nail damage and subnail bruising symptoms. 2, pain, fracture after the occurrence of severe pain and afraid to move, activity pain aggravated by local pressure pain, finger longitudinal percussion pain. 3, deformity, after the fracture, especially severe fracture will be accompanied by the loss of normal shape of the finger, such as angulation, shortening misalignment and other deformities. 4, bone fractures. 3, deformity, after the fracture, especially the serious fracture will be accompanied by the loss of the normal shape of the finger, such as into the angle, shorten the misalignment and other deformities. 4, bone friction sound and sassafras, activity fracture site will be obvious bone breathing friction sound and feeling. 5, functional limitation, loss of bone support, the finger normal activities will be influenced. Open fracture is characterized by the fracture end exposed outside, losing the skin protection, and also has the characteristics of closed fracture.