How many days does the menstrual period last?

Many women feel scared and excited when they get their first period. When a woman has her period, it means that the girl is growing up slowly. Many girls don’t know how many days their menstrual period lasts when they get their first period, so they are very confused about menstruation and don’t understand a lot of things. At this time, adults should tell children some knowledge about menstruation so that children can have some basic knowledge.

Menstrual period refers to the menstrual cycle, which is generally about 28 days. The method of calculating the menstrual cycle is to start from the first day of the previous menstruation, and the second menstruation begins 28 days later. However, due to differences in physical constitution, age, climate, region and living conditions, the menstrual cycle will also vary. Within the range of 7 days before or after 28 days, it is considered normal. During menstruation, you should pay attention to hygiene, prevent infection, keep warm and avoid cold stimulation.

The menstrual period lasts 4-5 days. As the levels of progesterone and estrogen in the blood drop to the lowest level, the prostaglandins produced by the uterus together cause the spiral arteries to spasm, thereby disrupting the blood supply to the endometrium. This will cause the endometrium and its blood vessels to necrotize and fall off, and the resulting bleeding can flush the dead endometrium into the uterine cavity. On the other hand, the increase in prostaglandins can also lead to contraction of the myometrium, which helps to discharge blood and endometrium from the uterine cavity, but can also cause dysmenorrhea that accompanies menstruation.

The above is some relevant information about how long a woman’s menstrual period lasts. There are many things that women need to pay special attention to when they are menstruating, and there are also many things that women should avoid when they are menstruating. At the same time, remember not to touch cold water and keep warm. This will ensure that your menstrual period is normal and you can avoid many minor illnesses and pains.