The sublingual bloodletting method should be operated by professional physicians, and should not be operated by oneself. Specific operation is: the physician first asked the patient to take a sitting position, open the mouth, in the Jinjin and Yuyi points with three-pronged needle puncture bloodletting, bloodletting amount of about 2mL, after pricking with cool water rinse the mouth, and then use a dry cotton ball to press for 5 minutes, until no bleeding can be. Sublingual bloodletting therapy is a rehabilitation therapy of traditional Chinese medicine, which has the function of dredging meridians and channels, regulating qi, and removing blood stasis. Through puncturing and bloodletting at Jinjin and Yuyi points, it can promote the popularity of blood circulation under the tongue to promote the discharge of blood stasis and treat clinical diseases in various disciplines. It should be noted that although sublingual bloodletting has certain benefits, it is not suitable for everyone and should not be used by patients with bleeding tendency. Sublingual bloodletting therapy should be operated by a professional Chinese medicine practitioner, and should not be attempted on your own, so as not to cause adverse consequences and delay the optimal treatment period for your condition.