How to treat a finger cut by a knife

After a finger is cut by a knife, if the wound is large or deep, prompt medical attention is required for emergency treatment including hemostasis, disinfection, and immobilization with bandaging. Specific measures are as follows:

1. Disinfection: Clean the wound thoroughly by rinsing repeatedly with hydrogen peroxide, iodophor, and normal saline to remove debris and contaminants;

2. Compression bandaging for hemostasis: Use sterile gauze or towel to cover the wound, then wrap firmly with a bandage to apply pressure. Additionally, compress the digital arteries along both sides of the fingertip to control bleeding;

3. Proper immobilization: Immobilize the injured finger using bandages or a splint as needed;

4. Seek immediate medical care: Severe lacerations that result in damage or rupture of important tissues require urgent hospital treatment. Some tissues may need surgical repair to restore proper finger function.