What is the STRAW classification of reproductive aging?

Updated: Sep 24, 2019
  • Author: Nicole K Banks, MD; Chief Editor: Richard Scott Lucidi, MD, FACOG  more...
  • Print
Answer

Answer

The STRAW (Stages of Reproductive Aging Workshop) classification proposed by the American Society for Reproductive Medicine depicts the natural transition in a female's life from the reproductive years to the time of menopause.

The reproductive years are divided into early, peak, and late and are characterized by regular menstrual cycles (although they may be variable during the early phase). This is followed by the stage of menopausal transition, which earlier on is characterized by a variable cycle length that is more than 7 days different from normal. During the latter stages of this transition phase, women experience intervals of amenorrhea of more than 60 days. When this duration of amenorrhea lasts for up to 12 months, it is classified as postmenopause. The stage of perimenopause spans from the beginning of the stage of menopause transition up until the completion of 1 year following the final menstrual period.


Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!