Ma Huang medicine should refer to the leech, also known as leech. It has the efficacy of breaking blood circulation and promoting menstruation, expelling blood stasis and eliminating symptoms. There is a small poison. Attributed to the liver meridian. Leeches have the effect of breaking blood circulation and promoting menstruation, eliminating blood stasis and eliminating symptoms. It is often used in the treatment of blood stasis and menstrual occlusion, obstruction in the abdomen (women with lumps in the lower abdomen), plaque (lumps), hemiplegia, stroke, fall and pummeling injuries and other symptoms. It is especially effective in treating stroke, hypertension, amenorrhea, bruises and pain in the heart and abdomen. Note: Because of its strong blood activating power, it is forbidden for pregnant women and people with excessive menstruation. The above Chinese medicines need to be used by traditional Chinese medicine practitioners after diagnosis, and should not be used blindly on their own, and if abnormal symptoms occur during the period of taking the medicine, it is necessary to consult a doctor in time in order to avoid delaying the condition.