Is it normal to start perimenopause at 47?

Starting perimenopause at age 47 is within the range of normal, though the most common onset is between ages 40 and 44. Some women begin experiencing hormonal shifts in their mid-30s, while others don't notice changes until their late 40s or early 50s.

At age 47, perimenopause may look different than it does for women at other ages. Earlier onset sometimes means a longer transition period, while later onset may bring more concentrated symptoms over a shorter time frame.

Factors that influence when perimenopause begins include genetics (when your mother and sisters started), smoking status, body weight, history of certain medical treatments, and autoimmune conditions.

If you are 47 and noticing changes in your cycle length, new or worsening PMS, sleep disruption, or mood shifts, it is worth discussing with your healthcare provider. A simple blood test measuring FSH and estradiol levels can provide useful information, though hormone levels fluctuate significantly during perimenopause and a single test is not always definitive.