Brown discharge from pregnancy may be caused by aura miscarriage, ectopic pregnancy or gynecological diseases, preterm labor or near-term labor. 1. aura of miscarriage: early pregnancy brown first to check whether the implantation bleeding, to exclude the implantation bleeding may be embryonic dysplasia, maternal disease, trauma and other aura of miscarriage, you can do ultrasound and progesterone examination, taking progesterone and other drugs to protect the fetus treatment, the specifics of the need to comply with the doctor’s instructions. 2. Ectopic pregnancy: early pregnancy with brown discharge should also be alert to the manifestation of ectopic pregnancy, usually abdominal pain and vaginal brown discharge phenomenon, once the rupture of the mass will be severe abdominal pain and obvious bleeding phenomenon. 3. gynecological diseases: pregnancy brown discharge also check whether cervicitis, cervical polyps and other diseases caused by abnormal bleeding, usually accompanied by increased discharge, contact bleeding during intercourse and other phenomena, need to improve the gynecological examination and treatment. 4. Preterm labor: brown discharge in the middle and late stages of pregnancy is likely to be a sign of preterm labor, usually accompanied by abdominal pain and lumbar pain and other discomforts, need to be examined and treated with birth control. 5. Prolonged labor: If you have reached the due date of brown discharge may be a sign of prolonged labor, belonging to the performance of redness, usually accompanied by frequent contractions, you need to timely check and prepare for labor.