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Functional hypothalamic amenorrhea (FHA) is a form of amenorrhea and chronic anovulation [1] and is one of the most common types of secondary amenorrhea. [2] It is classified as hypogonadotropic hypogonadism. [3] It was previously known as "juvenile hypothalamosis syndrome," prior to the discovery that sexually mature females are equally ...
Secondary amenorrhea's most common and most easily diagnosable causes are pregnancy, thyroid disease, and hyperprolactinemia. [50] A pregnancy test is a common first step for diagnosis. [50] Similar to primary amenorrhea, evaluation of secondary amenorrhea also begins with a pregnancy test, prolactin, FSH, LH, and TSH levels. [13]
Amenorrhea, or the absence of menstruation, is subdivided into primary and secondary amenorrhea. In primary amenorrhea, in which there is a failure to menstruate by the age of 16 with normal sexual development or by 14 without normal sexual development, causes can be from developmental abnormalities of the uterus, ovaries, or genital tract, or ...
The progestogen challenge test, or progesterone withdrawal test, is a test used in the field of obstetrics and gynecology to evaluate a patient who is experiencing amenorrhea. Due to readily available assays to measure serum estradiol levels, this test is now rarely used.
FHA accounts for around 10–15% of all cases of anovulation. Weight loss or anorexia can lead to FHA by causing a hormonal imbalance, leading to irregular ovulation (dysovulation). It is possible that this mechanism evolved to protect the mother's health. A pregnancy where the mother is weak could pose a risk to the baby's and mother's health.
Starvation from anorexia nervosa or bulimia causes the HPG axis to deactivate causing women's ovarian and uterine cycles to stop. Stress, physical exercise, and weight loss have been correlated with oligomenorrhea and secondary amenorrhea. [29] Similarly environmental factors can also affect men such as stress causing impotence. Prenatal ...
Dydrogesterone, sold under the brand name Duphaston among others, [1] is a progestin medication which is used for a variety of indications, including threatened or recurrent miscarriage during pregnancy, dysfunctional bleeding, infertility due to luteal insufficiency, dysmenorrhea, endometriosis, secondary amenorrhea, irregular cycles, premenstrual syndrome, and as a component of menopausal ...
The history of a pregnancy event followed by a D&C leading to secondary amenorrhea or hypomenorrhea is typical. Hysteroscopy is the gold standard for diagnosis. [18] Imaging by sonohysterography or hysterosalpingography will reveal the extent of the scar formation. Ultrasound is not a reliable method of diagnosing Asherman's Syndrome.