When does perimenopause begin? Understanding the timeline of change

Written by Joe Young

Digital Copywriter

Man smiling in blue t-shirt against yellow background

Medical review by Hassan Thwaini

Clinical Pharmacist and Copywriter | MPharm

Are you curious about when perimenopause might start for you? This significant phase marks the transition towards menopause, and understanding it can arm you with the knowledge to navigate it effectively.

At what age does perimenopause tend to start?

The onset of perimenopause can vary greatly. You may notice these changes as early as your mid-30s or as late as your 50s, although many women experience them in their 40s. Typically, the average age for the menopausal transition to begin is around 47.¹ However, remember that your experience might be different. Factors such as your genetics, lifestyle, and environment play a substantial role.¹

How long does perimenopause last?

For most women, this phase lasts 5-10 years, but it could be longer for some. You might notice symptoms intensifying as you progress - this is an opportunity to consult with healthcare professionals about any changes and prepare for what lies ahead.²

When does perimenopause become menopause?

You'll know you've transitioned to menopause when you've gone 12 consecutive months without a menstrual period.² This typically happens around the age of 51. Knowing this can help you track your journey from perimenopause to menopause.²

Common symptoms and healthcare seeking

Are you experiencing hot flushes, night sweats, or mood swings? You're not alone. Many women seek healthcare advice during perimenopause due to these symptoms. Interestingly, even if you're between 30 and 45 years old, you might find perimenopausal symptoms affecting your life, highlighting the value of staying informed and seeking medical guidance early.²

The numan take

Ultimately, the age at which perimenopause starts is unique to you. While 47 is the average, individual factors heavily influence this timing. Awareness and proactive steps are crucial to managing this life stage the best.

References

Santoro, N. (2016). Perimenopause: From research to practice. Journal of Women's Health, 25(4), 332–339. doi: 10.1089/jwh.2015.5556.
Cunningham, A.C., et al. (2025). Perimenopause symptoms, severity, and healthcare seeking in women in the US. npj Women's Health, 3.

Written by Joe Young

Digital Copywriter, BA English Literature

Joe is an avid writer. He loves puns and rhymes, but most importantly, strives to write copy that motivates men to change their lives for the better. Away from Numan, you can find Joe probably annoyed at a Watford F.C. game, enjoying a boogie at a disco night, or on a bike ride along the Thames.

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Medically reviewed by Hassan Thwaini

Clinical Pharmacist and Copywriter, Master of Pharmacy (MPharm)

Hassan is a specialist clinical pharmacist with a background in digital marketing and business development. He works as a Clinical Copywriter at Numan, leveraging his research and writing abilities to shine a light on the health complications affecting men and women.

See full profile

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