15 weeks pregnant with a small amount of brown bleeding may be a pre-eclampsia, gynecological diseases, fetal arrest and other reasons, through the birth control treatment, conservative treatment or surgical treatment, induced abortion surgery to deal with. 1. Pre-eclampsia: 15 weeks pregnant due to strenuous exercise, maternal viral infections, endocrine disorders and other reasons may lead to pre-eclampsia, there may be a small amount of bleeding, the blood accumulates for a longer period of time discharged manifested as a brown color, you can go to the hospital ultrasound to learn about the development of the fetus in the uterus, and then through the vitamin E, progesterone and other medications to protect the fetus. 2. Gynecological diseases: During pregnancy, there are gynecological diseases, such as cervical polyps, due to the brittle texture of the polyp, by the external or internal factors, resulting in polyp rupture, and then there is a brown discharge, according to the time period of the pregnancy to choose a conservative treatment for observation or surgical treatment to remove the cervical polyps. 3. Fetal arrest: 15 weeks pregnant with a small amount of brown bleeding may be fetal arrest, the fetus due to abnormal fetal quality, abnormal placental function, maternal factors and other influences caused by the cessation of intrauterine development of the fetus, there may be a small amount of brown bleeding in the early stage, and then the bleeding gradually increased, go to the hospital to do ultrasound to determine fetal arrest, timely induction of surgical treatment, such as isacridine induced abortion. 15 weeks pregnant with a small amount of bleeding brown is abnormal, specific to go to the hospital through the examination to determine.