The harmful effects of long-term use of chickweed vine include excessive menstrual flow, or causing subcutaneous bleeding, which may result in miscarriage if one is pregnant. Chicken Blood Vine is a kind of traditional Chinese medicine, for the legume family Mifanzu genus plants Mifanzu dry vine stems, taste bitter, slightly sweet, warm nature, to the liver, kidney meridian. It has the efficacy of promoting blood circulation, tonifying blood, regulating menstruation, and relaxing the tendons and collaterals (stretching the tendons and bones, dredging the meridians). Clinically used in the treatment of irregular menstruation, dysmenorrhea, amenorrhea, rheumatism paralysis, numbness of the hands and feet, paralysis of the limbs, blood deficiency and yellowish (yellowish due to insufficient qi and blood) and other diseases. Prolonged use of Chicken Blood Vine may lead to excessive menstrual flow or cause subcutaneous bleeding as well as abnormal bleeding in other parts of the body. For pregnant women prolonged use may cause miscarriage. If you need to use the drug, it is recommended to use the drug under the guidance of a doctor, do not blindly self-medication, in order to avoid adverse effects.