How to calculate menstruation according to the lunar calendar

It is a complete menstrual cycle from the first day of menstruation to the first day of the next menstrual cramp. Under normal circumstances, the menstrual cycle is calculated in one month, but it actually varies from person to person. The calculation of menstrual cycle should include the time of menstrual cramps. Some women only calculate the time when menstruation is clean, so they may think that the menstrual cycle is shortened. A menstrual cycle is generally 2 1-35 days, with an average of 28 days. It is also normal to have 1 round at the beginning and end of each month.

How is the menstrual cycle normal? The menstrual cycle length of different women is different, and it is within the normal range to appear 7- 10 days before or after malocclusion. As long as it can maintain a certain regularity, it is not irregular menstruation.

The menstrual cycle, also known as the ovarian cycle, is divided into four stages, including follicular phase, ovulation phase, luteal phase and menstrual period:

1, follicular phase: the follicular phase is from the first day of menstrual cramps to the day of ovulation. During this period, under the influence of follicle-stimulating hormone, the concentration of estrogen in the body increased, follicles gradually matured and endometrium thickened.

2. Ovulation period: Ovulation period refers to the process in which eggs are discharged together with the surrounding cumulus granulosa cells. Women's ovulation date is generally around 14 days before the next menstruation.

3, luteal phase: luteal phase refers to the day after ovulation to the day before menstrual cramps, the ovary is affected by luteinizing hormone, secreting lutein, maintaining a thickened endometrium, which is conducive to the implantation of fertilized eggs. If there is no fertilized egg, the endometrium will collapse and the menstrual cycle will end with dysmenorrhea.

4, menstrual period: the duration of each menstrual period is called menstrual period, generally 2-8 days, with an average of 4-6 days. There are generally no special symptoms in menstrual period, but due to pelvic congestion and prostaglandin, some women will have discomfort or uterine contraction pain in the lower abdomen and lumbosacral region, and may have gastrointestinal dysfunction symptoms such as diarrhea.