Normal days of menstrual cycle The menstrual cycle of normal women is 28 days, and the normal range is 7 days later or earlier, that is, 2 1 ~ 35 days is the normal range.
Normal menstruation has periodicity. The first day of menstrual bleeding is the beginning of menstrual cycle, and the interval between the first days of menstruation is called a menstrual cycle. A menstrual cycle is generally 2 1 ~ 35 days, with an average of 28 days. The length of women's menstrual cycle varies from person to person. Occasionally, it can still be regarded as normal to advance or postpone for no more than 7 days, that is, the menstrual cycle should not be less than 265,438+0 days and not more than 35 days. This menstrual cycle is a normal menstrual cycle.
Of course, the menstrual cycle of different women varies from person to person. Under normal circumstances, every woman should have her own menstrual cycle, but some women have a menstrual cycle of less than 20 days, or some women have a menstrual cycle of 36 days. However, according to the clinical investigation statistics of relevant departments, only 10% of women can have a menstrual cycle of 28 days to 30 days.
Therefore, it is generally believed that it is normal as long as the menstrual interval is the same. If irregular menstruation occurs in advance or later, it is an abnormal phenomenon, and there are many factors that affect the menstrual cycle, among which it is likely to be a symptom of a certain disease, so it is necessary to accurately record the time of each time, otherwise it is difficult to infer only by impression.
Different western doctors think that the poor menstrual cycle of different women is related to the time of follicular development. People with long follicular development time have long menstrual cycle. A menstrual cycle is divided into menstrual period, follicular period, ovulation period and luteal phase. At the same time, the endometrium changes step by step from bleeding to thickening and congestion, and this process is cyclical. However, some people spend a long time in this process, while others spend a little less time, resulting in a long menstrual cycle and a short menstrual cycle.
Calculation of menstrual cycle As a woman, she should know more about this knowledge. Calculating her menstrual cycle is an essential skill, which can help her better understand her health.
The calculation of menstrual cycle should include the time of menstrual cramps, from the first day of menstrual cramps to the beginning of menstrual cycle, and the interval between two menstruation is menstrual cycle. Some women also use menstrual cycle calculator to calculate menstrual cycle. Menstrual women usually start at the age of 13 ~ 14, the earliest at 1 1 or the latest at 15, which indicates that women's ovarian function is mature, which means they have fertility. Normal menstruation has periodicity. Menstrual cycle refers to the time between the first days of two menses.
The method of judging whether the menstrual cycle is normal depends on the menstrual period, menstrual color and other factors. Regardless of the cycle, the normal menstrual period should be 3~7 days, and less than 3 days indicates that the corpus luteum function is low and the endometrium will soon fall off. Experts pointed out that in addition to the requirements of cycle and menstrual period, the normal menstrual bleeding volume is 30~50 ml. If the menstrual blood is dark red, not thin or thick, not solidified, without blood clots, and has a special smell, it is normal.