For people whose blood keeps flowing from a small cut on the middle finger, they should first compress the finger artery at the root of the middle finger to stop the bleeding, and then disinfect and bandage the wound after the bleeding has stopped. For people whose middle finger is bleeding continuously due to a cut, first press the finger artery of the middle finger to stop the bleeding, and then disinfect and dress the wound. If the wound is deep and narrow, and the knife is rusty, it is recommended to go to the hospital in time for injection of tetanus antitoxin, etc. to prevent tetanus outbreak. After treatment, it is recommended to take amoxicillin, cefaclor and other antibiotics to prevent infection. In addition to this, after the knife cut wound blood flow, but also to consider whether there is a blood disease, mainly coagulation function damage disease, such as hemophilia, thrombocytopenic purpura and so on. It is recommended to go to the regular hospital in time for a series of examinations to clarify the cause of the disease, and then a series of formal treatment.