Leeches do not have the therapeutic effect of unblocking blood vessels, and there is no such thing as unblocking blood vessels and seeing results in a few days. Leeches are mainly used for treating blood stasis and menstrual occlusion, obstruction in the abdomen (lumps in the lower abdomen of women) and lumps (masses). Leeches is a Chinese medicine, its flavor is salty, bitter, flat, to the liver meridian, with the blood to pass through the menstruation, expel blood stasis and eliminate the efficacy of symptoms, clinically used in the treatment of blood stasis and menstrual closure, zhengzhi lumps, stroke hemiplegia, bruises and other diseases. In the treatment of menstrual closure and obstruction of the abdomen, it is often used to break blood stasis and expel blood stasis, and is often used with peach kernel; in the treatment of bruises and injuries, it can be used with hematoxylin and natural copper to invigorate blood circulation and heal injuries. It is not suitable for pregnant women. Before taking this medicine, it should be used under the guidance of a Chinese medicine doctor, and should not be purchased and used by oneself to avoid delaying the condition.