What is an average menstrual cycle?

What is an average menstrual cycle?

The menstrual cycle is generally a physiological cycle. Women's menstruation is generally one month as a menstrual cycle. If three menstrual cycles are recorded continuously, if these three values ​​are close, the average of the three values ​​is the average menstrual cycle. Because each person's physical condition is different, the menstrual cycle is also different. Most women's menstrual cycle is about 28 to 35 days.

How to calculate the menstrual cycle?

A complete menstrual cycle starts from the first day of menstruation and ends on the first day of the next menstruation. Generally speaking, the menstrual cycle is calculated as one month, but in fact it varies from person to person. The calculation of the menstrual cycle should include the time when menstruation begins. Some women only calculate the time when menstruation ends, which may make them think that the menstrual cycle is shortened. A menstrual cycle is generally 21-35 days, with an average of 28 days. It is normal to have a menstrual period at the beginning and end of the month.

The length of menstrual cycles varies from woman to woman. A menstrual cycle that is 7-10 days earlier or later is within the normal range. As long as a certain regularity is maintained, it is not considered to be menstrual irregularity.

The menstrual cycle, also called the ovarian cycle, is divided into four phases, including the follicular phase, ovulation phase, luteal phase, and menstruation phase:

1. Follicular phase: The follicular phase is from the first day of menstruation to the day of ovulation. During this period, under the influence of follicle-stimulating hormone, the concentration of estrogen in the body increases, the follicles gradually mature, and the endometrium thickens.

2. Ovulation period: Ovulation period refers to the process in which the egg cell and the surrounding cumulus granulosa cells are discharged together. A woman's ovulation date is generally about 14 days before the next menstrual period.

3. Luteal phase: The luteal phase refers to the period from ovulation to the day before menstruation. The ovaries are affected by luteinizing hormone and secrete progesterone to maintain the thickened endometrium to facilitate the implantation of the fertilized egg. If the fertilized egg does not implant, the endometrium will collapse and the menstrual cycle ends with the onset of menstruation.

4. Menstrual period: The duration of each menstrual period is called the menstrual period, which is generally 2-8 days, with an average of 4-6 days. Generally, there are no special symptoms during menstruation, but due to pelvic congestion and the effects of prostaglandins, some women may experience discomfort in the lower abdomen and lumbosacral area or uterine contraction pain, and may also experience symptoms of gastrointestinal dysfunction such as diarrhea.

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