Due to progesterone’s wide-ranging influence throughout the body, and especially on the reproductive system, maintaining stable hormonal levels is imperative. Progesterone imbalances can lead to gallbladder disease, infertility, mood swings, and other serious conditions.
Reasons for fluctuating progesterone levels vary. Pregnancy, menopause, menstruation, and even time of day can effect a change in progesterone level.
Normal progesterone levels refer to average levels of progesterone for women according to age and menopausal stage.
Progesterone levels are higher during ovulation and pregnancy and lower at other times.
Ranges of Normal Progesterone Levels
Normal progesterone levels range depending on the current reproductive stage. For example:
Premenopause and perimenopause
In these stages, normal progesterone hormone levels range between 8 – 10 ng/mL (nanograms per milliliter) when women are not ovulating. Generally, no symptoms of imbalance are experienced at the normal range.
Because the postmenopausal female is no longer reproductively active, normal progesterone levels are typically stable at one ng/mL.
Progesterone levels rapidly increase during ovulation in preparation for pregnancy, with the normal level hovering between 18-20 ng/mL.
During pregnancy, when the majority of the body’s progesterone is produced in the placenta, the normal progesterone level is approximately 16 ng/mL. These relatively high levels of progesterone are normal during pregnancy.
Normal progesterone levels depending on menstrual period and menopausal stage have been detailed above. No normal level of progesterone exists for menopause because of the rapid and erratic hormonal fluctuations that characterize this stage.
Click on the following link for more information about the significance of high progesterone levels.
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