Women’s menstrual cycle is the result of hormone balance regulation in the body on the basis of good general health. Any factor may interfere with this process and affect conception. Only by fully understanding the normal menstrual cycle can subtle changes that affect pregnancy be identified in a timely manner.
According to statistics, the average age of menarche is 12 to 13 years old. Over the past century, the average age at menarche has dropped by about 3 to 4 months every decade. This is due to improvements in hygiene and nutrition. However, the main factor determining menarche is genetic.
Most women have their first menstrual period between the ages of 9 and 17. The main causes of delayed menarche are: malnutrition, genetics, serious diseases such as rheumatism, diabetes, mental illness, anorexia nervosa, and severe emotional trauma and mental stress during the puberty period. Some lifestyles can also delay menarche or even amenorrhea, such as marathon running and other strenuous physical training and living in plateau areas. Light also seems to affect menstruation, with blind women tending to have earlier menarche. Race and climate have little effect on menstruation.
The normal menstrual cycle is 20 to 40 days, with an average of 28 days, and the menstrual period is 1 to 7 days. Normally, in the first few years after menarche, the menstrual cycle gradually develops with its own regularity. For example, some women have a 28-day menstrual cycle with a 4-day menstrual period; while some women have a 35-day menstrual cycle with a 6-day menstrual period. These are normal. The amount of menstrual flow also varies from person to person.
Many people will experience the menstrual cycle being slightly advanced or delayed, or the menstrual flow being slightly changed. Slight changes do not mean you have irregular periods.
Irregular menstrual cycles are common in women who have just started menstruation and in menopausal women who are approaching menopause. They are prone to irregular menstruation because they do not ovulate but still have estrogen in their bodies that stimulates the growth of the lining of the uterus. Menstruation stimulated by a single estrogen (anovulatory menstruation) can have long or short cycles, manifesting as irregular menstruation; while for the endometrium (that is, those who ovulate) under the dual influence of estrogen and progesterone, the ovulation time in the uterus is determined. The membrane peels off at the time of menstruation (menstrual cramps), so menstruation is regular.
If regular menstruation is suddenly accompanied by dysmenorrhea, heavy menstruation or prolonged menstruation, or even unstable cycles or amenorrhea, it indicates that you may have other diseases or even serious diseases. At this time, in addition to necessary gynecological examinations, other physical aspects must also be carried out.inspection.
Causes of irregular menstruation include: Hypothyroidism, hyperthyroidism, diabetes, overeating, malnutrition; being underweight or overweight; being highly stressed; Tumors of the ovaries, uterus, adenohypophysis or hypothalamus and endocrine disorders.
After about the age of 35, mild menstrual flow changes or premenstrual tension syndrome may occur. In fact, there may not be ovulation. At this time, if you are trying to get pregnant, you should consult your doctor as soon as possible.
This article is provided by Baidu Reading and is excerpted from \”The Clear \”Conception\” Plan\” Author: Sun Jianqiu and Xie Yingbiao