Early pregnancy bleeding can be clinically divided into two colors: the first one is fresh bleeding, when the gestational sac is detached from the uterine wall and the capillaries rupture, this bleeding is fresh and bright red when it is discharged from the vagina in time. It is recommended to determine the normal development through clinical examination and to actively treat the fetus. Secondly, the color of bleeding is brown bleeding. The brown bleeding is mainly old bleeding, that is, the phenomenon of detachment between the gestational sac and the uterine wall, but the bleeding is not expelled from the uterine cavity in time, but accumulates in the uterine cavity, and after a few days, it becomes old bleeding with a darker color. It is recommended to rule out the possibility of embryonic arrest in this case, and to do the corresponding clinical examination, and if there is a possibility of an abortion, try to give an abortion for treatment.