Low gestational sac flowing brown discharge is not recommended to sit at work, need to be under the guidance of the doctor’s birth control treatment. When the early pregnancy ultrasound examination suggests that the location of the gestational sac is low, and accompanied by vaginal brown discharge, abdominal pain and other symptoms of preeclampsia, laboratory tests of progesterone and blood HCG (human chorionic gonadotropin) levels are low, should be given as prescribed by the doctor progesterone and other medications to protect the fetus treatment. Pay attention to appropriately reduce the amount of activity, although do not need absolute bed rest, but not recommended to sit at work. When the symptoms disappear or are relieved after active treatment of preeclampsia and the ultrasound suggests that the embryo is well developed, the pregnancy can be continued. However, when the symptoms worsen, the ultrasound suggests that the embryo is not well developed, and the HCG does not rise or fall, it suggests that miscarriage is inevitable, and it is recommended that the pregnancy be terminated in a timely manner. When the gestational sac is low flow brown discharge need to be actively dealt with under the guidance of the doctor.