Taking leeches within the scope of indications and according to the correct dosage under the guidance of a doctor’s diagnosis will not usually lead to hair loss. Leeches belong to a kind of Chinese medicine, for leeches leech animal leech dry all. It has the efficacy of breaking blood circulation and promoting menstruation, expelling blood stasis and eliminating symptoms. It is mainly used for treating obstruction in the abdomen, blood stasis and menstrual occlusion, and fall and injury. The adverse reactions and contraindications of this product are prohibited in pregnant women, and prohibited in the absence of blood stasis. The need to pay attention to the drug is not yet clear. Clinically, it is used in combination with Sanguisorba, Curcuma longa and Saffron for the treatment of blood stagnation, menstrual closure and obstruction in the abdomen (tangible or intangible lumps appearing in the abdomen with a feeling of distension and pain); in combination with Sanguisorba and natural copper for the treatment of bruises; and in combination with Rhubarb and Petunia seeds for the treatment of stasis of blood and internal obstruction in the bowels. From the adverse reactions and effects of this product, taking leeches does not cause adverse reactions of hair loss, if any symptoms of hair loss, should be treated symptomatically under the guidance of a Chinese medicine practitioner.