What distinction does the vagina bleeding of ectopic pregnancy and menstruation blood have

The main differences between vaginal bleeding and menstrual blood in ectopic pregnancy are: 1. The former has less blood volume and is bright red, while the latter has more blood volume and the color is dark red. 2. The private parts of ectopic pregnancy are red, accompanied by severe abdominal pain, while women during menstruation are not necessarily accompanied by abdominal pain.