The contraindications of bloodletting therapy in Chinese medicine are that it should be used with caution by people who are physically weak, pregnant women, people with bleeding tendency and patients with serious chronic diseases, followed by the need to pay attention to sterilizing the site of application, and so on. Bloodletting therapy refers to the use of three-pronged needles or skin needles and other needles to puncture small superficial veins to release a small amount of blood, in order to achieve the purpose of treating diseases. Bloodletting therapy is not suitable for people who are physically weak, pregnant women, and patients with bleeding tendency and serious chronic diseases, otherwise it will affect the health to a certain extent and aggravate the primary disease. In addition, bloodletting therapy needs to be sterilized tightly to maintain sterility, with appropriate pressure and avoiding arteries to prevent excessive bleeding or infection. Bloodletting therapy can be used to treat heat stroke, headache, tonsillitis, neurodermatitis and other diseases, patients must actively cooperate with the doctor. When the body is not feeling well, you need to go to the hospital, under the operation of a professional doctor to carry out bloodletting therapy, do not operate on your own.