When every woman reaches adulthood, menstruation will occur almost every month until she enters menopause, when the menstruation will gradually decrease and finally she will stop menopause. Arterial blood in blood vessels is bright red, while venous blood lacks oxygen and becomes dark red. Generally speaking, menstrual blood should be arterial blood, so theoretically menstrual blood is bright red. So, what is the reason for red and black menstruation? The menstrual blood that comes every month is the blood flowing in the blood vessels in the body, and it should be bright red. However, because menstrual blood is mixed with sloughed endometrial fragments, cervical mucus and vaginal epithelial cells, it looks dark in color and is not as bright red as the blood flowing out of broken skin. There are also some small thin fragments mixed in the menstrual blood. In particular, some people have less menstrual blood, and the color becomes darker as the blood stays in the uterus and vagina for a longer time. Therefore, while paying attention to the color of menstrual blood, you should also pay attention to the menstrual cycle, duration of menstruation, amount of menstruation, and whether you have any discomfort. Dark menstrual color may be caused by blood stasis, or it may be related to deficiency of Qi and blood in the body, which can be regulated with regulating medicine. Black menstrual blood may also be caused by menstrual blood staying in the endometrium for a long time. Black blood clots in menstrual blood are often related to the amount of menstrual blood. There are many reasons for the red and black menstrual period. The reason why women have menstruation is due to the shedding of the uterine membrane. Menstrual blood is formed in the uterus and has a journey to flow out of the vaginal opening. During this journey, the menstrual blood comes into contact with oxygen and may turn red and black. In addition, the red and black color of menstrual blood is also related to the mixture in the menstrual blood, which may be a factor of blood stasis. |
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