Bleeding is less common when the fertilized egg is transplanted into the uterine cavity to grow and develop, usually lasting 2-3 days with a small amount of bleeding, or in a few women the bleeding can last for about 1 week. Bleeding from fertilized egg implantation occurs only in a few women and may be due to a more sensitive body type. The fertilized egg is transplanted into the uterine cavity and is a foreign body to the endometrium, causing a rejection reaction that results in a small amount of endometrial exfoliation causing bleeding. If vaginal bleeding occurs during implantation, women should pay attention to keeping the vulva clean and hygienic, not to get cold, to rest, to increase nutrition, to improve physical fitness, and to prohibit sexual intercourse. In addition, if a woman has more bleeding, she should go to the obstetrics and gynecology department of the hospital for examination and treatment in time to avoid uterine infection and spontaneous abortion.