After the IUD, the discharge is brown and the bleeding usually stops in 7 to 14 days. However, it can not be generalized, the specific time is related to the cause of bleeding, bleeding, treatment effect and so on. 1. The brown discharge after IUD may be due to the IUD damaging the uterine lining and local capillary rupture, thus causing a small amount of bleeding and brown discharge. As the endometrium recovers, the bleeding will gradually stop in 7~14 days and the color of the secretion will return to normal. 2. After the IUD is inserted, the endometrium rejects the IUD, causing bleeding. Usually, the bleeding symptoms will disappear gradually as the uterine lining adapts to the IUD, and the bleeding symptoms can be relieved within half a year. However, if the bleeding persists, the IUD should be removed in a timely manner. 3. Some women who do not pay attention to personal hygiene after placing the IUD, leading to bacterial invasion, thus inducing infection in the uterine cavity, can also lead to bleeding and brown discharge. The color of the discharge will return to normal only after treatment with antibiotics such as cefotaxime and cefoxitin sodium as prescribed by the doctor. There are many reasons for the brown color of the discharge after the IUD, so it is recommended to go to a regular hospital in time to complete the relevant examinations and carry out targeted treatment after clarifying the cause of the disease.