What color is normal menstrual blood?

Many female friends only care about whether they have their menstruation on time, but do not observe whether the color and amount of menstrual blood are normal. In fact, generally speaking, the color of menstrual blood is dark red because it contains the shed endometrium of the uterus and some mucus.

Menstruation is also called monthly period, monthly water, monthly letter, and menstrual period, which refers to regular, periodic uterine bleeding. Generally its color is not solidified and is dark red. The blood is mixed with shed endometrial flakes, cervical mucus, and vaginal epithelial cells, and the blood does not coagulate, so there are no blood clots. In daily life, many female friends have black menstrual blood. In fact, this is an abnormal situation and should be diagnosed and treated.

A normal menstrual period can last from 3 to 7 days, with most lasting between 3 and 5 days. The average total amount of bleeding is about 50 ml, but can be as little as 10-20 ml or as much as over 100 ml. The heaviest amount of bleeding occurs on the 2nd or 3rd day of menstruation.

Menstrual blood is dark red, half of which is blood and half is mucus, damaged endometrial tissue and desquamated vaginal epithelium. During menstruation, the fibrinolytic activity of the endometrium increases, so the menstrual blood generally does not coagulate, or occasionally there are small blood clots. Before and during menstruation, the uterus has cervical congestion, the uterus is slightly enlarged and soft, the external cervical opening is loose, the vaginal mucosa is moist and congested, the cervix is ​​slightly colored, and the secretions increase. Generally, there is no discomfort.

What causes abnormal menstrual color?

1. Kidney deficiency factor: If you are not aware of other aspects of kidney deficiency, menstruation will tell you in its own way. Judging from its color, the menstrual cycle is irregular, the amount is small, the color is light red or dark red, and the texture is thin. Weak waist and knees, heel pain, dizziness, tinnitus, or cold lower abdomen, or frequent urination at night.

2. Menstrual irregularity: It is a common gynecological disease, manifested as abnormal menstrual cycle or bleeding volume, or abdominal pain and systemic symptoms before and during menstruation. For example, abnormal menstrual volume, heavy or light. Abnormal menstrual color, such as black or dark red. Or it could be an abnormality in the menstrual cycle, such as delayed or early menstruation.

3. Improper care during menstruation: taking a tub bath during menstruation, smoking, drinking coffee or tea during menstruation, having sex during menstruation, and participating in strenuous exercise such as long-distance running, swimming, etc., and also avoiding excessive physical labor. These are all due to improper menstrual care, which can also lead to abnormal menstrual color.