After the finger is chopped, it is usually necessary to make a comprehensive judgment according to the degree of damage to the severed finger, the time of severing the finger, the severed finger preservation, etc. It is recommended to consult a doctor in time to clarify the situation and then comply with the doctor’s instructions. 1. Degree of damage to the severed finger: if the tissue trauma is light after the finger is chopped, and the severed finger is neatly cut, then the contact surface is wider, and the survival rate of the severed finger is generally higher. On the contrary, the section surface is not neat, at this time the tissue, blood vessels, nerves, etc. are not in a water surface, can not guarantee its growth, the survival rate of severed fingers is relatively low. 2. Time of broken finger: the degree of necrosis of the muscle tissue of the broken finger is faster, usually need to be picked up within 8 hours, if more than 8 hours, the muscle tissue of the broken finger is usually necrotic, and it may not be able to survive to be picked up. 3. Preservation of severed fingers: After the finger is chopped, the severed finger usually needs to be preserved in saline with low-temperature sealing to prevent contamination and reduce its metabolism to avoid rapid tissue necrosis. If the severed finger is contaminated, or if it is not easy to be preserved in hot weather, it may make the severed finger tissue lose its vitality by rapid necrosis, and reduce its survival rate. After the finger is chopped, the patient should immediately consult a doctor and follow the doctor’s instructions to avoid delaying the condition and aggravating the injury.