Cupping blood clots may be a normal phenomenon, or it may be caused by the wrong way of cupping and certain diseases. 1. Normal reaction: when cupping, there will be local capillary rupture, blood oozing and coagulation to form blood stasis; no special treatment is needed, just wipe it off with clean gauze or face stick. 2. Wrong way of cupping: the general cupping time is ten to fifteen minutes, and should not be too much negative pressure, especially in the more fragile parts of the skin, which may lead to subcutaneous hemorrhage; at this time, you need to keep the traumatic surface dry, and skin disinfection or bandage. 3. Systemic diseases: if the body has symptoms of heat and toxicity stagnation, subcutaneous petechial hemorrhage or blood blisters will appear when cupping; if you suffer from blood system diseases (such as leukemia), bleeding symptoms are more likely to occur; it is recommended to consult a doctor for symptomatic treatment, especially for blood system diseases, which should be treated by Hematology Department in time to avoid the emergence of life-threatening situations. Cupping should be carried out under the guidance of a professional physician and should not be done by oneself to avoid delaying the condition.