The problem of brown discharge after two months of pregnancy is very common in the clinic, as follows: 1. When the embryo is in bed, after eroding through the endometrium, the blood vessels rupture a little and a small amount of bleeding accumulates in the uterine cavity or vagina, which can slowly turn into brown discharge and then be discharged, which is actually a phenomenon that occurs after bleeding when hemoglobin oxidizes and mixes with vaginal secretions, so there is no need to be overly nervous; 2, The situation of pre-eclampsia is not excluded, some embryos will also appear after fetal abortion, the loss of hormonal support after fetal abortion, the embryo is in the stage of stopping development, when the hormone level drops, the endometrium loses support will also appear this bleeding situation. Therefore, when brown discharge occurs after two months, ultrasound examination is usually done first to rule out embryonic abnormalities and then to determine other causes.