What is the reason for not having menstruation without pregnancy? Women should pay attention to it

In addition to pregnancy factors, there are many other reasons for the absence of menstruation, such as excessive stress. Many women are always prone to depression due to great mental pressure, which can easily lead to amenorrhea. There are also some disease factors, such as premature ovarian failure.

1. Excessive stress leads to amenorrhea. If women are under excessive mental stress for a long time, are too depressed, easily angry, and in a bad mood, the function of the pituitary gland will be inhibited, causing the ovaries to no longer secrete estrogen or even ovulate. Under such circumstances, it is easy to cause menstrual disorders and even the risk of amenorrhea.

2. Excessive weight loss leads to amenorrhea. Dieting to lose weight can easily affect the normal internal environment and cause insufficient blood biochemistry. In addition, the fat in the body has a certain relationship with the secretion and accumulation of estrogen, which is the source of energy for women's menstruation and reproduction. In order to maintain normal menstruation, conception, breastfeeding and other functions, women's body fat content must be at least 22% of their body weight. If women consume too little body fat, estrogen secretion will be reduced in the long run, which can easily cause amenorrhea.

3. Ovarian amenorrhea Women have menstruation because the hormones secreted by the ovaries act on the endometrium, causing it to change, then fall off, and bleed. If the ovaries cannot secrete hormones, the endometrium will not change, and menstruation will stop naturally. Common reasons for the inability of the ovaries to secrete hormones include congenital ovarian dysplasia, premature ovarian failure, etc.

4. Pituitary amenorrhea The human pituitary gland is located under the brain. Although it is very small, it is an important part of the endocrine organs that control the whole body. When the pituitary function changes, the female ovarian function will decrease. Common pituitary diseases include tumors and hypopituitarism. Stimulation of the central nervous system The human central nervous system includes the brain and hypothalamus. These two parts directly manage the activity of the pituitary gland and indirectly control ovarian function. Once the central nervous system is stimulated, or the hypothalamus is stimulated, changes in ovarian function will cause amenorrhea.