Brown secretions in new pregnancies may be a normal physiological phenomenon, but it does not exclude pathological factors, such as preeclampsia, cervical polyps and so on. 1. Physiological phenomenon: In early pregnancy, a small amount of bleeding will be caused during the process of the gestational sac’s implantation, mainly due to the gestational sac in the process of implantation, it will stimulate the local endothelium, resulting in a small amount of bleeding, usually there are no other uncomfortable symptoms. 2. Pre-eclampsia: If a woman is pregnant for more than one month and suddenly develops a brownish discharge, it may be due to the occurrence of pre-eclampsia. 3. Suffering from cervical polyps: If a pregnant woman suffers from cervical polyps before she gets pregnant, the level of estrogen and progesterone will change after pregnancy, which will cause bleeding and thus brown discharge. If a pregnant woman is pregnant and has brown vaginal discharge, accompanied by abdominal pain and other uncomfortable symptoms, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor, improve the relevant examination, to clarify the cause of the disease, symptomatic treatment.