Menopause
The menopause transition typically begins between 40 and 50 years of age (average 47.5). The duration of perimenopause may be for up to eight years. Women will often, but not always, start these transitions (perimenopause and menopause) about the same time as their mother did.
Hormone replacement therapy
A major complaint among postmenopausal women is decreased libido, and many may seek medical consultation for this. Several hormonal changes take place during the menopausal period, including a decrease in estrogen levels and an increase in follicle-stimulating hormone. For most women, the majority of change occurs during the late perimenopausal and postmenopausal stages. Decrease in other hormones such as the sex hormone-binding globulim (SHBG) and inhibin (A and B) also take place in the postmenopausal period. Testosterone, a hormone more commonly associated with males, is also present in women. It peaks at age 30, but declines with age, so there is little variation across the lifetime and during the menopausal transition. However, in surgically induced menopause, instead of the levels of estrogens and testosterone slowly declining over time, they decline very sharply, resulting in more severe symptoms.