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Polycystic ovary syndrome, or polycystic ovarian syndrome (PCOS), is the most common endocrine disorder in women of reproductive age. [14] The syndrome is named after cysts which form on the ovaries of some women with this condition, though this is not a universal symptom, and not the underlying cause of the disorder.
Not all women with PCOS have difficulty becoming pregnant. For those who do, anovulation is a common cause. The mechanism of this anovulation is uncertain, but there is evidence of arrested antral follicle development, which, in turn, may be caused by abnormal interaction of insulin and luteinizing hormone (LH) on granulosa cells.
It is also associated with polycystic ovary syndrome, or PCOS, which causes irregular ovulation, the opinion notes; obesity also leads to higher rates of miscarriage.
Additionally, it is thought that epigenetics may contribute to the pathogenesis of polycystic ovary syndrome. [55] One potential cause of PCOS is maternal hyperandrogenism, whereby hormonal irregularities in the mother can affect the development of the child during gestation, resulting in the passing of polycystic ovary syndrome from mother to ...
For example, endometriosis can cause infertility with the growth of endometrial tissue in the fallopian tubes or around the ovaries. Endometriosis is usually more common in women in their mid-twenties and older, especially when postponed childbirth has taken place. [68] Another major cause of infertility in women may be the inability to ovulate ...
Several conditions predispose a woman to forming a luteoma during pregnancy. Polycystic ovary syndrome (PCOS) is one such condition. [5] This syndrome is associated with high hormone levels and the failure of the ovaries to release an egg during the menstrual cycle, a symptom more often associated with menopause.
Polycystic Ovary Syndrome (PCOS) is a condition in which your ovaries and adrenal glands produce more male hormones than normal and cysts develop on your ovaries. PCOS can cause: Irregular periods
The radiation dose to the ovaries that generally causes permanent female infertility is 20.3 Gy at birth, 18.4 Gy at 10 years, 16.5 Gy at 20 years and 14.3 Gy at 30 years. [32] After total body irradiation , recovery of gonadal function occurs in 10−14% of cases, and the number of pregnancies observed after hematopoietic stem cell ...