Suddenly there is a little bit of brown secretion in the ninth week of pregnancy, which may be caused by pre-eclampsia, retained abortion or cervical disease or other factors. 1. Pre-eclampsia: The first thing to consider is the phenomenon of pre-eclampsia, and the embryo is not well developed or maternal disease, trauma, fatigue and other external factors, usually accompanied by abdominal pain and lumbago discomfort. You can go to the hospital in time to do ultrasound and progesterone examination, to determine the embryo is well developed, and then give progesterone and vitamin E to protect the fetus treatment. 2. Auditory abortion: nine weeks pregnant with brown discharge should also be alert to the embryo stops the development of the auditory abortion, there will be persistent abdominal pain and vaginal brown discharge, bleeding symptoms. Ultrasound can be done to confirm the diagnosis and follow the doctor’s instructions to give timely treatment of the uterus. 3. Cervical diseases: brown vaginal discharge during the ninth week of pregnancy may also be cervicitis, cervical polyps or cervical cancer and other cervical diseases caused by irregular bleeding, there will be increased secretions, odor and symptoms such as contact bleeding during intercourse. It is necessary to go to the hospital in time to improve the gynecological examination and give symptomatic treatment. In addition, there are other factors that may also lead to this situation, such as trauma, etc. It is recommended to go to the hospital in time for examination, to clarify the cause of the disease and follow the doctor’s instructions to deal with the treatment.