The average worldwide age of menopause, defined as one full year without menstruation, falls between:

1. Menopause is the cessation of the menstrual cycle following the loss of ovarian follicles. 2. A woman is considered to have completed menopause after a full year without menstruating. 3. The average age for this transition is remarkably consistent worldwide. 4. That average range is 50 to 52 years of age. _Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 27 "The Reproductive System", p.1308 §Female Reproductive System_