Blood in the panties in early pregnancy is often due to the following reasons: 1. Pre-eclampsia miscarriage, it is recommended to do ultrasound examination to understand the location of the gestational sac and whether the size of the gestational sac matches the number of days of menopause, and to combine the blood HCG and progesterone tests for a comprehensive analysis, if it is a pre-eclampsia miscarriage, timely treatment of the fetus and bed rest is recommended. 2. It is recommended to monitor the blood HCG and check again every other day. If the blood HCG does not double on the basis of the original one day and the gestational sac cannot be seen in the uterus, it is likely to be an ectopic pregnancy and hospitalization is recommended for observation.