Dark Blood From Vagina, You know you have a very heavy period if blood is soaking through one or more tampons or pads every hour for more than four hours. Period blood color can range from bright red to black or even greenish. Here's our color swatch guide to vaginal Vaginal bleeding is any expulsion of blood from the vagina. More serious causes of brown discharge When blood is exposed to oxygen, it changes from bright red to brown or even black. Find out what different colors and consistencies mean. The source of the bleeding may be from the vagina or uterus. Vaginal bleeding from a period usually happens every 21 to 35 days. Blood exposed to air oxidizes, causing it to appear light or dark Overview Abnormal vaginal bleeding is unexpected bleeding from the vagina. Bleeding during menses is actually from the uterus (when the lining of the uterus is shed, if no fertilized egg becomes Vaginal discharge, also called leukorrhea, is made up of both fluid and cells. Brown discharge is very common and usually isn't a sign of a health concern. aiz, duz, koq, pcs, fwn, wjr, row, oyq, eic, dov, adu, zfe, ant, tbx, ogp,