When a woman bleeds brown in the early stages of pregnancy, it is generally considered to be a manifestation of pre-eclampsia, but it may also be an abnormal phenomenon caused by ectopic pregnancy. If the bleeding is brown at the time of conception, it should be considered as a phenomenon caused by the fertilization of the egg, which belongs to physiological changes and can be treated without any treatment. However, if the woman is about 30 days after menopause, bleeding brown, and bleeding gradually increased, as menstruation, we should consider the phenomenon of biochemical pregnancy, mostly due to the fertilized egg embryo quality abnormalities caused by the phenomenon. Generally, it can be treated as a menstrual period without any treatment, and in the month of biochemical pregnancy, you can prepare for pregnancy normally.