Sanyinjiao is a point on the foot Taiyin spleen meridian, which has the effect of activating blood circulation and regulating menstruation (regulating menstruation by activating blood circulation), and can treat bloating and diarrhea, etc. Note that rubbing a single point can only play a supplementary role, and does not have a major therapeutic effect. Sanyinjiao is the meeting point of the three yin meridians, which has the effect of activating blood circulation and regulating menstruation, benefiting qi and strengthening the spleen (regulating the qi of the spleen and stomach), and tonifying the liver and kidneys, and is mainly used for treating intestinal tinnitus, abdominal distension, diarrhea and other diseases of the spleen and stomach, etc.; it can also treat obstetrics and gynecology diseases such as menstrual irregularities, dyspareunia, yin ting (a woman whose uterus prolapses or even comes out of her vaginal opening), infertility and so on; and also treats spermatorrhea, impotence, urination and other genito-urinary diseases. Sanyinjiao is a commonly used acupuncture point in the clinic, specifically located in the inner calf, 3 inches up from the tip of the inner ankle, the posterior margin of the medial edge of the tibia. The thumb or forefinger can be used to gently rub and press, to the extent that there is a feeling of acidity, numbness, distension and so on. If you have any discomfort and need acupuncture, moxibustion, or medication, please go to the hospital and operate and use it under your doctor’s guidance.