What is perimenopause, when can it begin, and how long can it last?

Perimenopause is the transitional phase leading up to menopause, when your body begins to shift from its reproductive years toward the end of menstruation. During perimenopause, your ovaries gradually produce less estrogen, and you may start to experience symptoms like irregular periods, hot flashes, night sweats, mood swings, sleep disturbances, vaginal dryness, and more.

When can it begin?

Perimenopause can start as early as your 30s, but most women notice changes in their 40s.
The timing varies for each person and can be influenced by genetics, lifestyle (such as smoking), and overall health.

How long can it last?

The average duration of perimenopause is about four years, but it can be as short as a few months or as long as ten years.
Perimenopause officially ends when you have gone 12 consecutive months without a period, marking the start of menopause.

If you want a deeper dive into the stages and hormonal changes of perimenopause, check out the "Stages of Perimenopause and Hormonal Fluctuations" chapter in our YouTube video with Dr. Corinne Menn for a clear explanation of what happens during this transition.

For more information on symptoms and how to manage them, visit our detailed guide: Signs Perimenopause Is Ending.

If you’re experiencing symptoms and want personalized support, take our online assessment to connect with a menopause-trained doctor and explore treatment options. At Alloy, we offer a range of solutions, including hormonal and non-hormonal therapies, to help you feel your best during this transition. Explore our products page for more details.

This answer was created using the following resources: