You can differentiate between normal menstrual blood and abnormal uterine or vaginal bleeding by whether the bleeding is regular, how long it lasts, and the amount and color of the period.
1. Regularity: Normal menstruation is relatively regular, occurring about once a month. Abnormal uterine or vaginal bleeding, however, occurs with no regularity, and may occur once every few days or once every few months.
2. Duration: Normal menstruation lasts for 3 to 7 days, but in the case of abnormal uterine or vaginal bleeding, the duration varies, and may last only a few days, or it may last for ten days or even a few weeks.
3. Amount of menstruation: Normal menstruation during a period, the amount of bleeding is about 20~60 ml. However, abnormal uterine bleeding bleeding can be more or less, some may be only a dozen milliliters, but some can bleed dozens of milliliters, and even cause the patient to suffer from iron-deficiency anemia.
4. Color: Normal menstrual blood is dark red in color, but if it is abnormal uterine or vaginal bleeding, it may be bright red.
If vaginal bleeding is not regular, lasts for a long time, the amount of menstrual bleeding increases, and the color is bright red, then you should go to the hospital in time to see a doctor, and give targeted treatment after clarifying the cause.