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阴道出血是妇科疾病中最常见的症状,出血可来自外阴、阴道和子宫。临床上所谓阴道出血绝大多数是子宫出血．引起阴道出血的原因很多,其机理归纳起来可有下列四种:一,卵巢功能失调这种子宫出血称为卵巢功能失调性子宫出血,简称“功血”。功血有无排卵型和有排卵型两种。卵巢的主要功能是排卵及分泌女性激素。子宫内膜在卵巢性激素作用下,发生有规律的、周期性的子宫出血,称为月经,是生育期妇女的生理现象。卵巢分泌性激素受脑垂体促性腺激素的支配,脑垂体功能又受丘脑下部所控制,丘脑下部则受大脑皮层的影
Vaginal bleeding is the most common symptom of gynecological diseases, bleeding can come from the vulva, vagina and uterus. The so-called clinical vaginal bleeding is the vast majority of uterine bleeding. Cause a lot of vaginal bleeding, the mechanism can be summed up in the following four: First, ovarian dysfunction This uterine bleeding is called ovarian dysfunctional uterine bleeding, referred to as “dysfunctional uterine bleeding.” There are two types of dysfunctional uterine bleeding and ovulation. The main function of the ovary is ovulation and secretion of female hormone. Endometrial ovarian sex hormones, the occurrence of a regular, periodic uterine bleeding, known as menstruation, is the physiological phenomenon of women during their reproductive years. Ovarian sex hormone secreted by the pituitary gonadotropin at the disposal of the pituitary gland function under the control of the hypothalamus, the lower part of the hypothalamus by the cerebral cortex