Perimenopause Age Range and Characteristics

Defining Perimenopause

The American Academy of Family Physicians suggests that perimenopause typically occurs in women aged 40 to 60 years, with the transition period lasting 2 to 10 years before menopause, which has a median age of 51 years in the United States 1, 2
The perimenopausal period is characterized by an age range of 40-60 years, though this represents the broad spectrum where perimenopause can occur 1, 2
The median menopause age is 51 years, meaning perimenopause commonly begins in the mid-to-late 40s 1, 2

Approximately 5% of women experience natural menopause before age 45 (premature menopause) 3
Early menopause (before age 45) is associated with increased stroke risk and warrants cardiovascular risk factor screening 3
The American Academy of Family Physicians recommends that contraception should be continued until menopause is confirmed, ideally until age 50-55 years 1, 2
By age 60, most women have completed the menopausal transition 4, 5
Age ≥60 years is used as a criterion for confirmed postmenopausal status in clinical trials 4, 5

The American Academy of Family Physicians recommends continuing contraception until menopause is confirmed (12 months of amenorrhea) or at least until age 50-55 years 1, 2
For hormone therapy decisions, women under 60 years OR within 10 years of menopause onset have the most favorable benefit-risk profile 6