From the first day of menstruation to the day before the next menstruation is called a menstrual cycle ,28 to 30 days, but the menstrual cycle of 25 to 35 days is normal. So, what does the menstrual cycle include?
The menstrual cycle is divided into preovulation and postovulation. The length of follicular period before ovulation is not certain, but the luteal phase is fixed for about 14 days after ovulation. During menstruation, normal menstrual blood is dark red, mixed with endometrial fragments and mucus, a few small clot. Menstrual period is generally 3 to 5 days, the normal range is 2 to 7 days, the total amount of bleeding per menstruation in about 50 ml.
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menstruation lasts about 3 to 5 days. by the 7th day, the pituitary gland secretes hormones to stimulate the development of the egg. when the egg develops and matures, the pituitary gland begins to secrete estrogen, stimulating the growth of a group of 3 to 30 follicles, which are supplemented to accelerate growth in the last few days of the previous cycle. when the FSH level decreases, one of the supplementary follicles is selected for ovulation, it matures and sends out, while the rest goes into decline and the first stage ends.
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Ovulatory contraception is a method of stopping sexual life during ovulation. The first is menstrual period, is menstrual tide time, generally in a week or so, pay attention to the two words, menstrual period is also different from person to person, not a week. After the end of the menstrual period into the normal period of non-bleeding, about a week later, the arrival of ovulation, ovulation is normal childbearing age women every month have physiological phenomena, is to prepare for pregnancy, reproduction. Ovulation is the most likely day of pregnancy in a menstrual cycle, the most dangerous day many people call. Ovulation is only a moment, but the egg cell in the body is slow, so before it dies and is absorbed, it may survive in the female body for about 2 days, so ovulation these days may be pregnant.
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