Perimenopause After 40: What Every Woman Should Know
Perimenopause is the transition phase before menopause, when the ovaries gradually begin producing less estrogen and progesterone. It commonly starts in the 40s, although it can begin earlier or later.
What happens during perimenopause?
Hormone levels become unpredictable, which can lead to:
- Irregular periods — cycles may become shorter, longer, lighter or heavier.
- Hot flashes and night sweats
- Mood changes, anxiety or irritability
- Sleep problems
- Fatigue and difficulty concentrating
- Weight gain or changes in body composition
- Headaches
- Breast tenderness
- Vaginal dryness or reduced sexual desire
- Joint and muscle aches
Does every woman experience it after 40?
No. Not every woman starts perimenopause at 40, and symptoms vary greatly. Some women have noticeable symptoms for years, while others experience very few.
Menopause itself is diagnosed after 12 consecutive months without a menstrual period, and the average age is around 51.
Why is it important to talk about?
Perimenopause is a normal biological transition, not an illness. However, symptoms can significantly affect work, sleep, relationships and quality of life. Women don’t have to simply “put up with” severe symptoms—medical treatments and lifestyle changes can help.
If periods become extremely heavy, occur very frequently, or bleeding happens after 12 months without periods, it’s important to consult a healthcare professional rather than assuming it’s just menopause.
