Mugwort has the function of warming the menstruation to stop bleeding (warming the human body’s meridians to stop bleeding in the body), dispersing cold and relieving pain. Mugwort is warm in nature, pungent and bitter in taste, with a small toxicity, and belongs to the meridians of the liver, spleen and kidney, and is used in the treatment of vomiting blood, epistaxis, disintegration of the blood (excessive menstruation or drips and dribbles), dysfunction of the menstrual cycle, infertility of coldness in the uterus, menstruation and excessive menstruation, and cold pain in the lesser abdomen (lower abdomen) and other conditions. It is clear from the main therapeutic properties of mugwort that it cannot be used to treat breast enlargement. The adverse effects of the drug are not clear, and mugwort should be used with caution in cases of yin deficiency and blood heat. Patients with breast hyperplasia should not treat themselves with mugwort to avoid adverse results, and should be treated with medication under the guidance of a physician’s interview.