Progesterone is an important hormone that plays a vital role in the female menstrual cycle and pregnancy. Some key facts about progesterone:
- Progesterone is a steroid hormone produced mainly by the corpus luteum in the ovary after ovulation, and by the placenta during pregnancy.
- Along with estrogen, progesterone helps control the menstrual cycle. Estrogen levels rise in the first half of the cycle, causing the uterine lining to thicken. Progesterone levels rise in the second half of the cycle, which makes the uterine lining ready for implantation of a fertilized egg.
- If pregnancy occurs, progesterone helps maintain the uterine lining to support the growing fetus during pregnancy. Progesterone levels steadily rise early in pregnancy.
- If pregnancy does not occur, progesterone levels fall dramatically, which signals the next menstrual period.
- Progesterone has other effects as well. It helps prepare the breasts for milk production in later pregnancy. It also has a role in maintaining pregnancy by relaxing smooth muscle tissue in the uterine lining.
Some women have issues with
progesterone deficiency or low progesterone levels, which can cause problems with fertility and maintaining pregnancy. Symptoms of low progesterone can include:
- Irregular or absent periods
- Spotting in the second half of the cycle
- Infertility or recurrent miscarriages
In summary, progesterone is a key reproductive hormone with important roles in the menstrual cycle and pregnancy. Seeking care for suspected
progesterone deficiency can help address underlying issues. Specialized clinics like Hormone Health Clinic offer testing and treatments tailored to your hormone health needs.