Generally speaking, children's little finger flexion refers to congenital finger flexion deformity, and the joint bends from the nail end. This situation is mostly hereditary and usually exists all the time, but there is no adverse effect.

The best time to correct it is as early as possible. In addition, it may also be caused by burns, bone and joint injuries and other reasons, and the best time for correction is different for different reasons. Details are as follows:

1. Congenital finger flexion deformity: The earlier the surgical intervention, the better. Because of the long time, in the process of children's rapid development, long-term bending of fingers will lead to finger joint development disorder or deformity, which will make future orthopedic surgery more difficult and more traumatic.

2. Burn: If the patient's little finger is bent due to scar skin contracture after burn, it is recommended to wait until the scar is basically mature, that is, after 8 months, scar resection, correction and skin flap transplantation are carried out.

3. Bone and joint injury: If the bending of children's little finger is caused by bone and joint injury, it should be corrected by bone and joint surgery. If it is because of the injury of extensor tendon, it is necessary to complete the repair of extensor tendon as soon as possible, preferably within three weeks.

It may also cause tendon injury: the injury of extensor digitorum digitorum tendon will lead to insufficient muscle strength of extensor, and then the little finger is in a bent state. If the interphalangeal joint at the distal end of the little finger can't bend, and the joint bends like a hammer, it may be that the extensor tendon of the little finger is broken, so it is necessary to go to the hospital for medical treatment in time after confirming the degree of injury.