Pre-menopause is the natural transition period towards menopause, when the ovarian reserve starts to decrease and a woman loses her fertility. It usually begins around the age of 40 and lasts for a very variable period of time, from a few years to 10 years or more.
On the other hand, perimenopause is a shorter stage that precedes menopause and lasts until 12 months after the last menstruation. It usually lasts about 2 or 3 years and is characterized by irregularities in the menstrual cycle. The most common age of perimenopause is between 45 and 50 years old.
Read the full article on: What Is Perimenopause? Symptoms and Pregnancy Possibility ( 77).
By Elisa Pérez Larrea M.D., M.Sc. (gynecologist), Laura Rollán Guilén B.Sc. (embryologist), Rebeca Reus BSc, MSc (embryologist), Zaira Salvador B.Sc., M.Sc. (embryologist) and Romina Packan (invitra staff).
Last Update: 07/01/2020
