Bloodletting on the back is a kind of bloodletting therapy, which is a kind of Chinese medicine treatment using three-pronged needles or other tools to act on certain acupuncture points or painful parts of the body to let out the right amount of blood to treat the disease, and can be combined with cupping if necessary. Dorsal blood cupping is generally used for treating solid heat symptoms, such as high fever, fainting, sunstroke, fire and other diseases, but it can not be used to treat blood clots. Blood clots belong to the western medical name, in Chinese medicine can be attributed to chest paralysis (chest pain), blood stasis category, mostly in the Chinese medicine practitioner under the guidance of the identification of traditional Chinese medicine prescriptions for treatment, rarely used in the piercing and bloodletting therapy. It is recommended that patients with thrombus should go to the hospital for regular checkups and cooperate with professional doctors to avoid delaying their condition.