Introduction to the female menstrual cycle

Introduction to the female menstrual cycle

We all know that a normal menstrual cycle in women means the health of their body. If a woman's menstrual cycle is prolonged or delayed, it may be because she has endocrine disorders or amenorrhea, or it may be because she is pregnant. Regarding the length of the female menstrual cycle, we hope everyone can understand the introduction of the female menstrual cycle in this article.

The menstrual cycle, also known as menstruation or physiological period, is the physiological cycle of human females. In other mammals, it is the estrus cycle. Menstruation is regulated by the reproductive hormone system and is necessary for biological reproduction. A woman's first menstruation is called menarche, and the onset of menarche marks the entry of a woman into puberty. The average age of menarche for girls is 12 years old, but it is normal to have menarche between the ages of 8 and 16.

The length of the menstrual cycle varies from person to person. Every woman's menstrual cycle is long or short. It is normal for a woman's longest cycle minus the shortest cycle to be within 8 days. It is very rare for women to have a period that differs by less than 4 days. The difference in length between 8 and 20 days is somewhat abnormal. For women, a difference of more than 21 days in length is considered a serious abnormality.

Menstruation is also called menstrual bleeding. Menstruation is a sign that a woman has not yet conceived (but it is not certain, as menstrual bleeding sometimes occurs in early pregnancy). During the reproductive period, the absence of bleeding during menstruation means that a woman has conceived. When an expected menstrual period does not come, a woman may be able to say her "period is late," but she may also be pregnant.

The menstrual cycle is counted from the first day of menstruation because the onset of menstruation is quite consistent with the cycle of hormone secretion. Menstruation can generally be divided into several stages as shown in the table below. The length of each stage varies from person to person and depends on the cycle. The days in the table below are averages.

We hope that female friends can pay attention to the length of the female menstrual cycle and the possible problems that may arise during the menstrual cycle introduced in this article. The menstrual cycle of female friends is very helpful for female friends to predict their physical health and whether they are pregnant, and we can see the possible problems of female friends from the menstrual period.

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