The appearance of brown discharge in early pregnancy is considered to be both physiological and pathological factors. The physiological factors are mainly the implantation bleeding, while the pathological factors include pre-eclampsia, ectopic pregnancy and gynecological diseases, the causes of which should be clarified and dealt with in a timely manner. Common causes and treatment measures 1, physiological phenomenon: the fertilized egg in the endometrium of a small number of women will cause bleeding, generally less bleeding, bleeding time is not long, belong to the normal physiological phenomenon, do not need to deal with; 2, pre-eclampsia abortion: early pregnancy will have a small amount of bleeding when the pre-eclampsia abortion, reflected in brown discharge, with the aggravation of the condition will gradually appear abdominal pain, vaginal bleeding increased. It is important to go to the hospital for examination and follow the medical advice to take fetal preservation treatment; 3, ectopic pregnancy: if there is vaginal bleeding and accompanied by abdominal pain, you should consider the possibility of ectopic pregnancy, you should go to the hospital for a clear diagnosis, usually through ultrasound and blood HCG situation to confirm the diagnosis, timely termination of pregnancy; 4, gynecological diseases: vaginitis, cervical polyps, cervical cancer, etc. may appear brown leucorrhea, you should go to the hospital in a timely manner. The treatment will be based on the specific causes, such as local medication. Attention to keep the perineum clean during pregnancy, change underwear regularly to avoid infection, brown discharge should be taken seriously, investigate the causes, timely treatment, regular maternity checkups, keep track of the physical condition of the fetus and pregnant women.