Leeches have a small poison, leeches in wine has the effect of breaking the blood to open the menstruation, expel blood stasis and eliminate the symptoms. Leeches are a kind of Chinese herbal medicine, its flavor is salty, bitter, and its nature is flat; it belongs to the liver meridian. Clinically, it is mainly used for treating blood stasis and menstrual closure, obstruction in the abdomen, lumps, hemiplegia, fall injury and other diseases. Leeches in wine can enhance its effect of activating blood circulation and can be used to treat the above conditions. It should be noted that leeches are forbidden to be taken by those who are weak in body and blood, pregnant women, women during menstruation and those who have bleeding tendency. The adverse effects of leech wine are not clear. If you need to use leech wine, you must use it under the guidance of a professional doctor to avoid damage to the body.