is menstrual blood the same as regular blood
Menstrual bloodis mainly composed of blood, old parts of uterine tissue, cells from the mucus lining of the vagina and bacteria making up the vaginal flora. Menstrual blood is different from normal blood due to its composition and its physical properties. Put another way, menstrual blood is blood mixed with secretions from the vagina and cervix, old cellular tissue, red blood cells and mucin.