NAMS Menopause Certification Practice Exam

When a woman has a uterus and is taking estrogen, adding progesterone is essential to protect the endometrium from unopposed estrogen stimulation. Estrogen alone can cause the uterine lining to grow, which over time raises the risk of endometrial hyperplasia and cancer. Progesterone counteracts this by promoting secretory changes and eventual shedding, preventing prolonged buildup.

In practice, the common cyclic approach is to give progesterone for a limited window each month, typically about 12 days. This creates a predictable withdrawal bleed and provides endometrial protection while allowing estrogen to manage symptoms like hot flashes during the rest of the month.

Other options don’t fit this context well: hot flashes don’t dictate the need for progesterone, and while some regimens use continuous combined therapy (progesterone every day with estrogen), the standard teaching reflected here emphasizes a 12-day, cyclic addition. Progesterone isn’t added only when estrogen levels are high; protection is needed whenever estrogen is used in someone with a uterus.