This can't be long When the finger is cut off, the wound is repaired by connective tissue. At this time, the collagen fibers that were originally arranged in order began to shrink, disorder, accumulate and break, and new capillaries and nerve fibers grew in the new connective tissue.

The severed finger was reserved at that time and can be replanted in the nearest hospital.

Broken fingers can be reconstructed for years.

At present, finger amputation can only be treated by transplantation or finger reconstruction.

Simply put, it is to reconstruct a normal finger through surgery. Finger reconstruction has gone through skin flap reconstruction, toe transplantation and now total reconstruction. The difference is that flap reconstruction has no function, but simply wraps the injured finger; Toe transplantation is to take a toe from the foot and connect it to the injured hand through transplantation; Total reconstruction is a new technology developed on the basis of toe transplantation Before transplantation, it was modified (bone and toenail flap) to make it close to the appearance of normal fingers and the shape of phalanges was consistent. At the same time, the blood vessels, nerves and tendons were anastomosed under the microscope, and the joints were fixed with Kirschner wires. After later rehabilitation exercise, the reconstructed fingers can have normal grip strength, feeling and perception.

Finger and toe bones can grow back after being cut off and bandaged. It's normal for nails to grow. Finger roots can grow when they are still there.