The establishment of a normal ovulation cycle requires normal hypothalamus-pituitary-ovarian function. Dysfunction in any one of these parts may lead to anovulation, thus causing infertility such as amenorrhea, oligomenorrhea, and hemorrhage. The causes of anovulation are:
(1)Hypothalamic disorders are divided into two categories: functional and organic. The former includes idiopathic diencephalic amenorrhea, psychogenic amenorrhea, functional hyperprolactinemia, and anorexia nervosa; the latter includes diencephalic tumors, post-encephalitis, and post-head trauma.
(2)Pituitary dysfunction, pituitary adenoma, Sheehan syndrome, tuberculosis or syphilitic granuloma.
(3)Ovarian dysfunction includes primary ovarian amenorrhea and secondary amenorrhea. The former includes Turner syndrome and others. The latter includes premature ovarian failure, organic damage to the ovaries, such as loss of function after radiation exposure, which can cause damage caused by tumors and inflammation.
This article is provided by Baidu Reading and is excerpted from \”The Clear \”Conception\” Plan\” Author: Sun Jianqiu and Xie Yingbiao