When brown discharge from uterine drainage occurs in the early stages of pregnancy, it is important to be alert to the possibility of preeclampsia or ectopic pregnancy. It is recommended to consult a doctor in time and treat the symptoms. Women in the early stages of pregnancy when the uterine drainage brown discharge, to consider two situations: 1, a priori miscarriage. Early pregnancy embryo bed is still unstable, the luteal function is insufficient, progesterone support is insufficient, it is easy to cause preeclampsia. At the same time, there is a combination of back pain, abdominal pain and other symptoms. 2, ectopic pregnancy. Due to the early stage of pregnancy, the development of the fetus can only be determined by taking blood tests of blood HCG and progesterone values. As the fertilized egg did not settle in the uterus, but settled in other parts of the uterine cavity other than the uterine cavity, commonly in the pot belly of the fallopian tube,. As the embryo develops, the restriction of the bedding space causes symptoms such as vaginal bleeding. Ectopic pregnancy is a common gynecological emergency for women and can cause great harm if not treated in time. These are the most common possible causes, and it is also important to note if the infection is inflammatory, which should also be given timely treatment. Therefore, if there is a dirty brown discharge in the early stages of pregnancy, you must go to the gynecology department of the hospital in time, check the ultrasound, and take blood tests of blood hcg and progesterone to clarify the cause of the disease, and give treatment in time.