Hormones

Importance of Female Sex Hormones

Creator: Dr Nadira Awal
Published: 2026-01-15

Oestrogen, progesterone and testosterone across the life course.

By Dr Nadira AwalBMS Specialist2 min readMedically reviewed 9 July 2026

Soft pink camellia blossoms floating in a shallow ceramic dish

Female sex hormones do far more than regulate periods — they influence brain, bone, heart, skin, mood and sleep. Understanding them helps you make informed choices about treatment.

Oestrogen, progesterone and testosterone are usually described as 'sex hormones', but that name badly under-sells them. Every one of the trillion cells in your body responds to these three molecules — some directly, some indirectly. When they fall, the consequences are felt in almost every organ system. Understanding what each hormone actually does explains why menopause is far more than the end of periods, and why targeted replacement can restore so much more than fertility.

Oestrogen — the master regulator

Brain: modulates mood, memory, sleep, temperature control and reward pathways; supports serotonin, dopamine and GABA signalling.
Bone: maintains density by slowing osteoclast activity — without it, bone is lost at 1–2% a year in early post-menopause.
Heart and vessels: keeps arteries flexible, favourably shifts cholesterol and supports healthy blood pressure.
Skin, hair, vagina and bladder: maintains collagen, elasticity and moisture — falls are why so many women notice sudden skin ageing.
Metabolism: influences insulin sensitivity and body fat distribution.

Illustration of hormones interacting with cellular receptors — Oestrogen, progesterone and testosterone act on receptors in almost every organ system.

Progesterone — the calming counterweight

Balances oestrogen's stimulating effect on the womb lining, preventing thickening.
Supports sleep and calm through GABA-receptor activity — many women sleep better on Utrogestan.
Modulates mood, though sensitivity varies (see 'progesterone intolerance').
Falls earliest in perimenopause — often the first driver of symptoms years before periods stop.
Body-identical micronised progesterone is the modern first-line choice.

Testosterone — the missing piece

Made by ovaries and adrenals in women; blood levels roughly halve between age 20 and 40.
Supports libido, sexual pleasure, energy, muscle mass, bone density and cognitive sharpness.
Often overlooked in menopause care — in the right woman, it can transform quality of life.
In UK practice it is replaced only after oestrogen has been optimised and if libido or energy issues persist.
No female-licensed product in the UK yet; specialists prescribe reduced doses of male gels or import AndroFeme.

A specialist explaining testosterone therapy to a patient — Testosterone is often the missing piece for women whose libido and energy do not fully recover on oestrogen alone.

How replacement works in practice

Body-identical hormones (transdermal oestradiol, micronised progesterone, testosterone gel) match your own chemistry molecule-for-molecule.
Doses are personalised — one size never fits all.
Regimens are reviewed at 3 months, then annually.
Absorption varies between women — clinical response, not blood levels, guides most dose adjustments.

Why this matters

Once you understand what each hormone does, the wide-ranging symptoms of menopause stop feeling random.
Replacing the specific hormone(s) that have fallen — in the right form, at the right dose — is what makes HRT so effective when it is prescribed properly.

Key takeaway

Female hormones do far more than regulate reproduction. When they fall, the effects ripple through mood, brain, bone, heart and metabolism — which is exactly why thoughtful replacement can be so transformative.

How Dr Awal approaches this in clinic

Every consultation starts with your full story — symptoms, cycle, medical history, family history and what you've already tried. From there we look at whether hormonal treatment, non-hormonal options, lifestyle changes or a combination will give you the best result, and we tailor the plan to your age, risk factors and preferences.

A detailed 60 minute first appointment — no rushed 10-minute slots.
Evidence-based recommendations aligned with NICE NG23 and BMS guidance.
Body-identical HRT considered first-line where appropriate.
Shared-care letters sent to your NHS GP so treatment can continue affordably.
Follow-up at 3 months to fine-tune your regimen and address side effects.
Ongoing annual reviews so your plan evolves with you.

Common questions we hear about this

Do I need to be at a certain age to be seen?

No. We see women in early perimenopause (often late 30s and 40s), through post-menopause and beyond. Age alone doesn't decide whether treatment is right — symptoms, health history and goals do.

Will my GP continue the prescription?

In most cases yes. After your consultation we send a detailed shared-care letter with the diagnosis, treatment plan and rationale so your NHS GP can prescribe on the NHS. Not every practice accepts shared care — we'll discuss this in your appointment.

What if I've tried HRT before and it didn't suit me?

Very common — often the type, dose or route wasn't right rather than HRT itself. We review what you've tried, why it didn't work, and adjust accordingly. Many women who thought HRT wasn't for them do well on a different preparation.

How long will I need to stay on treatment?

There is no set upper time limit for HRT. Current BMS and NICE guidance supports continuing HRT for as long as the benefits outweigh the risks for you personally. We review this together every year so you stay in control of the decision.

Where do you see patients?

All consultations at Pause and Co Healthcare are conducted securely via video, allowing us to support patients anywhere in the UK. Prescriptions and shared care arrangements are managed in the same way, regardless of your location.

About the author

Dr Nadira Awal is a British Menopause Society Advanced Menopause Specialist with 15+ years' NHS and private experience. She holds the BMS Advanced Certificate in Menopause Care, sits on the BMS Programme Planning Group, and advises the UK Government Menopause Strategy Group. Read her full profile.

Sources & further reading

General information only — not a substitute for personalised medical advice. Always speak to your GP or a menopause specialist about your own situation.

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