In perimenopause, your body is moving toward the end of your reproductive years. It’s a natural and normal progression, but it comes with both physical and emotional symptoms. Some of these symptoms can disrupt your life or make you uncomfortable. Perimenopause may begin as early as your mid-30s or as late as your mid-50s.

Women start perimenopause at different ages. You may notice signs of progression toward menopause, such as menstrual irregularity, sometime in your 40s. But some women notice changes as early as their mid-30s. The level of estrogen — the main female hormone — in your body rises and falls unevenly during perimenopause.

Perimenopause usually starts in a woman’s 40s. On average it lasts four to six years, but it can last from one to 10 years. If you are at the expected age and have some symptoms (e.g. irregular periods), it’s likely you’re approaching menopause.

For most women, perimenopause usually occurs in their 40s. However, some women may experience symptoms of perimenopause as early as their 30s. The duration of perimenopause can vary, but it usually lasts for several years. Some women can experience symptoms for up to 10 years before they reach menopause.