Blood cupping can generally not be used to treat diseases, but can only be used to improve related symptoms, such as mouth ulcers caused by heart fire, bad breath caused by stomach fire, yellow and red urine caused by bladder dampness and heat, and bad breath caused by dryness of intestines. Blood cupping can be used for mouth and tongue sores, mouth ulcers, dry mouth and drinking, etc. caused by heart fire, to improve bad breath, stomach pain, dry mouth and thirst, easy to be hungry, etc. caused by stomach fire, to relieve yellow and red urine, increased leucorrhea, and heavy taste caused by damp-heat of the bladder, and to improve dry stools and mouth odor caused by dryness of the intestines. Blood cupping also needs to pay attention to strict sterilization to avoid infection, the operator should wear rubber gloves, not to stain the patient’s blood. In addition, there are many contraindications to blood cupping, generally bleeding tendency, thrombocytopenia, psychiatric patients and patients with blood diseases, can not be cupped, blood cupping needs to be strictly in accordance with the doctor’s operation, do not blindly operate.