What reason causes not to come menstruation meeting

summary

In women's life, they often encounter the phenomenon of delayed menstruation. Sometimes it is a normal physiological reaction, sometimes it is a pathological reaction. The menstrual cycle is generally 28-30 days. It is still normal to advance or delay about 7 days, and the length of the cycle varies from person to person, Women with normal menstruation will be worried. So, what are the reasons why women's menstruation is not normal? Here are some common explanations:

What reason causes not to come menstruation meeting

First, the uterus. Also called uterine amenorrhea. The reason why women don't come to regular leave is amenorrhea caused by uterine problems, such as congenital absence of uterus, uterine dysplasia, or childhood disease involving endometrium, adhesion or scar. Although ovarian function is very good, female characteristics are normal, but no menstruation. After the onset of menarche disease, such as endometrial tuberculosis, endometrial schistosomiasis, endometrial suppuration or curettage when the endometrial basal layer, can not respond to ovarian hormones and secondary amenorrhea. 　　

Second, the ovarian factor. Also known as ovarian amenorrhea. Normal menstruation, women do not leave the reason is due to ovarian secretion of hormones in the endometrium, make it change, and then fall off, bleeding and form. If the ovary can not secrete hormone, the endometrium will not change, menstruation will stop naturally, such as congenital ovarian dysplasia, premature ovarian failure and so on. This kind of reason amenorrhea, often accompanies the feminine characteristic degeneration phenomenon, like the breast becomes equal.

Third: the pituitary gland. It is called pituitary amenorrhea. Pituitary gland is located in the lower part of the brain, small in size, but commands the endocrine organs of the whole body. When pituitary function changes, ovarian function decreases. The common pituitary diseases are tumor and hypopituitarism.

matters needing attention

Central nervous system. The central nervous system includes the brain and hypothalamus, which direct the activity of pituitary gland and indirectly control ovarian function. When the central nervous system is stimulated, the ovarian function changes and causes amenorrhea. Such as lovelorn, bereaved, work failure, can suddenly amenorrhea, hypothalamic tumors can also cause amenorrhea.