Perimenopause Starts Earlier Than You Think
The average age of menopause (12 consecutive months without a period) in the UK and US is 51. But the perimenopausal transition, when oestrogen begins to fluctuate unpredictably, can start up to 10 years earlier. Women in their early 40s, even late 30s, may be experiencing perimenopausal symptoms without realising it.
The Symptoms Nobody Warned You About
Hot flushes and night sweats are the most well-known symptoms, but perimenopause presents very differently for many women. Disturbed sleep, anxiety, brain fog, joint pain, heart palpitations, vaginal dryness, and changes in period frequency or flow are all common. Many women are diagnosed with anxiety or depression when the root cause is hormonal fluctuation.
Why Cycles Become Unpredictable
As ovarian follicle reserves decline, the pituitary gland produces more FSH to try to stimulate the ovaries. This leads to erratic hormone production, some cycles may be anovulatory (no ovulation), others may have unusually high oestrogen. The result is irregular, sometimes heavier, sometimes lighter periods and unpredictable PMS-like symptoms.
What You Can Do
Keep a detailed symptom log tied to your cycle, this is exactly what TryHerCare is designed for. If perimenopause is suspected, ask your GP for FSH and oestradiol levels (ideally on day 2–5 of your cycle). HRT (hormone replacement therapy) is highly effective at managing perimenopausal symptoms and has been significantly rehabilitated by recent research. Do not accept "you're just getting older" as an answer.
Medical Disclaimer
This article is written for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional before making health decisions.
Dr. Lisa Park
MD, FACOG
All TryHerCare articles are written and reviewed by qualified medical professionals. Our content is clinician-reviewed to ensure accuracy and clinical relevance.
