If you have brown discharge half a month after a medical abortion, it may be caused by intrauterine residue, poor uterine contraction, etc. It is recommended to actively seek medical advice and give appropriate treatment and treatment to avoid more serious consequences. 1. intrauterine residue: there is residue in the uterine cavity or residual tissue has not been discharged, resulting in brown discharge. If the residue is small and can flow out on its own, it can be observed first, while taking drugs to promote its discharge. If the residue is large, it needs to be cleared; 2. Poor contraction of the uterus: It may be due to the patient’s excessive mental tension and weakness that leads to poor contraction of the uterus, resulting in brown discharge. Drugs such as motherwort can be taken under the guidance of the doctor to promote uterine contraction. Patients can perform appropriate physical activities to promote the discharge of residues and avoid bathing and sexual life. Pay attention to perineal hygiene and change underwear and underwear regularly. Patients need to take medication under the guidance of a professional physician and should not take medication blindly.