What reason can cause not to come menstruation?

summary

Every woman's life, often encounter the phenomenon of delayed menstruation. Menstrual cycle is generally 28-30 days, 7 days ahead or delayed are normal range, the length of the cycle varies from person to person. But if the menstruation originally normal female suddenly time is excessively long, can let the human worry. Next, I would like to share with you the reason why menstruation does not come normally

What reason can cause not to come menstruation?

First, the uterus. Also known as uterine amenorrhea, amenorrhea caused by uterine problems, such as uterine dysplasia, endometrial adhesions or scars. There are also women in the emergence of menarche after the disease, such as endometrial tuberculosis, endometrial schistosomiasis, endometrial suppuration, ovarian hormone can not react normally and secondary amenorrhea. 　

Second, the ovarian factor. Also known as ovarian amenorrhea, normal menstruation is due to ovarian secretion of hormones in the endometrium, so that it changes, shedding, bleeding and formation. If the ovary can not normally secrete hormone, the endometrium will not change, menstruation will stop naturally, such as congenital ovarian dysplasia, premature ovarian failure and so on.

Third, the central nervous system. The central nervous system includes the brain and hypothalamus, which not only command the pituitary, but also control ovarian function. When the central nervous system is stimulated, the ovarian function changes and causes amenorrhea. Such as lovelorn, bereaved, work failure, may cause sudden amenorrhea.

matters needing attention

The reason is pituitary gland. Also known as pituitary amenorrhea. Pituitary is located in the lower part of the brain, small in size, but commands the endocrine organs of the whole body. When the pituitary function changes, the ovarian function decreases, resulting in amenorrhea.