When menstruation, blood normally comes out red. But what if the black menstrual blood comes out instead? Do we need to worry? Check out the explanation in the following. Girls over the age of 11 or 14 years old are likely to be visited by guests every month. The arrival of guests who are usually called menstruation will usually last for three to five days, with a distance of about 24-40 days. When menstruation, menstrual blood will come out of a woman's vagina. This blood is mixed with the uterine lining which is decaying because there is no fertilization of the egg by sperm. Black Menstrual Blood Menstrual blood is actually red, but if it turns out menstrual blood that comes out black, you do not immediately panic. Menstrual blood can sometimes be dark brown or blackish. In most cases, brown menstrual blood is normal. Throughout the menstrual cycle, the color and consistency of the blood can change. Menstrual blood can be liquid and little, but it can also coagulate and co...