Bright red menstrual blood is usually an abnormality. Normally, menstrual blood is dark red. If you experience bright red menstrual blood, you can visit your gynecologist for an examination to clarify the cause. A woman’s menstruation is caused by the flaking of endometrial tissue after the withdrawal of estrogen and progesterone, which mixes with blood flowing out of the vagina. Generally speaking, menstrual blood is dark red in color, sticky and without clots, and there may be a small amount of endometrial debris as well as cervical mucus. If the menstrual blood is bright red, it is mostly abnormal and is most often seen in multiple fibroids, submucosal growth of fibroids, adenomyosis, adenomyoma, pelvic inflammatory disease, endometritis, endometrial polyps and other diseases. If the menstrual flow is normal and there are no other uncomfortable symptoms such as pain, there is no need to worry too much and no special treatment is needed, observation is sufficient. If the amount of menstrual blood is too much, the prolonged period may cause secondary anemia, which needs to be actively treated Menstruating women should keep a happy mood, relieve stress, pay attention to rest, avoid staying up late, avoid cold, raw and cold stimulating food, and pay attention to keeping the abdomen warm.