Follicle Stimulating Hormone (FSH)
Private FSH testing in London for £38, measuring one reproductive hormone marker with results expected in around 1–2 days.
Turnaround time
1-2 business days
Biomarkers count
1
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Overview of the Follicle Stimulating Hormone (FSH) Test
The Follicle Stimulating Hormone blood test measures FSH, a reproductive hormone produced by the pituitary gland.
The test assesses 1 reproductive hormone marker: Follicle Stimulating Hormone (FSH).
FSH forms part of the hypothalamic-pituitary-gonadal axis and plays an important role in reproductive function in both women and men.
In women, FSH stimulates the growth and development of ovarian follicles during the early part of the menstrual cycle.
FSH works closely with Luteinising Hormone and Oestradiol.
Its concentration varies considerably according to menstrual-cycle stage, age and ovarian function.
During the reproductive years, FSH is often measured in the early follicular phase when fertility assessment is being undertaken.
As ovarian reserve declines, the ovaries can become less responsive to pituitary stimulation and FSH may rise.
FSH concentrations commonly become substantially higher after menopause.
However, FSH can fluctuate considerably during perimenopause.
One isolated result should therefore not be used by itself to diagnose menopause in every clinical situation.
In men, FSH acts principally on the Sertoli cells within the testes and supports sperm production.
Raised FSH in a man can occur where the testes are not responding adequately to pituitary stimulation.
Low or inappropriately normal FSH can occur when hypothalamic or pituitary signalling is reduced.
The result is usually most informative alongside Luteinising Hormone, Oestradiol, Testosterone, Prolactin and other reproductive investigations depending on sex and the clinical question.
What Does the Follicle Stimulating Hormone (FSH) Test Check ?
The test measures FSH, a pituitary hormone involved in ovarian follicle development in women and sperm production in men. This test measures 1 biomarker.
Follicle Stimulating Hormone (FSH)
Measures a pituitary reproductive hormone involved in ovarian follicle development, reproductive ageing and sperm production.
Who May Benefit From the Follicle Stimulating Hormone (FSH) Test ?
FSH testing can be useful during fertility assessment, investigation of menstrual changes and evaluation of reproductive hormone signalling in women and men.
Women undergoing fertility investigation - FSH can contribute to assessment of pituitary-ovarian signalling.
Women with irregular or absent periods - Abnormal FSH can help distinguish ovarian from hypothalamic or pituitary causes.
Women undergoing assessment of perimenopause or menopause - FSH can provide supporting information in the appropriate clinical setting.
Women with suspected reduced ovarian function - FSH can rise when ovarian responsiveness declines.
Men undergoing fertility assessment - FSH provides information about pituitary signalling involved in sperm production.
Men with suspected testicular dysfunction - Raised FSH can occur where the testes are not responding normally.
People with known pituitary disease - FSH can form part of broader pituitary hormone assessment.
People monitoring fertility or hormone treatment - Repeat measurements may be used where clinically appropriate.
How to Prepare
Do not stop hormonal contraception, HRT or fertility medication solely to alter the FSH result unless specifically advised.
Cycle timing can materially affect interpretation in premenopausal women.
How to Book Your Follicle Stimulating Hormone (FSH) Test in London
The FSH test can be booked privately for focused assessment of reproductive and pituitary hormone signalling.
Choose the Follicle Stimulating Hormone (FSH)
Select the individual FSH blood test online.
Select your sample collection option
Choose an in-clinic blood draw or professional home or hotel phlebotomy where suitable.
Attend your appointment
A trained healthcare professional collects the required venous blood sample at the appropriate cycle stage where relevant.
Laboratory analysis
Your serum undergoes laboratory measurement of Follicle Stimulating Hormone (FSH).
Receive your results securely
Your authorised result is delivered securely and can be interpreted alongside LH, Oestradiol and other reproductive hormones where appropriate.
When Will I Receive My Results?
The current live London Blood Tests page lists a turnaround of approximately 1–2 days after laboratory receipt for Follicle Stimulating Hormone (FSH).
FSH is a routinely available endocrine measurement.
The sample undergoes laboratory hormone analysis, quality-control procedures and result authorisation.
Turnaround begins when the specimen reaches the laboratory rather than necessarily from the exact time of collection.
Understanding Your Results
FSH reference ranges vary according to sex, age and, in women, menstrual-cycle phase.
In a premenopausal woman, the result should be interpreted according to the cycle day.
FSH naturally rises and falls during the menstrual cycle.
A higher FSH result in a woman can occur when ovarian responsiveness has declined.
This pattern is common after menopause and can also occur with primary ovarian insufficiency.
During perimenopause, FSH can fluctuate considerably from one test to another.
A low or inappropriately normal FSH in the presence of reduced ovarian hormone production can raise consideration of hypothalamic or pituitary causes.
In men, raised FSH can indicate impaired testicular function affecting sperm production.
Low FSH can occur when pituitary or hypothalamic stimulation is reduced.
FSH should therefore be considered alongside LH, Oestradiol or Testosterone and the clinical reason for testing.
Why Book With London Blood Tests?
London Blood Tests provides private FSH testing for fertility, reproductive and pituitary hormone assessment.
Measures a key reproductive hormone - FSH regulates ovarian follicle development and supports sperm production.
Relevant to female fertility assessment - FSH can provide information about pituitary-ovarian signalling.
Relevant to male fertility assessment - FSH plays an important role in testicular sperm production.
Can support menopause assessment - Raised FSH can accompany the menopausal transition when interpreted appropriately.
Can complement other fertility hormones - LH, Oestradiol, Prolactin and AMH can provide additional information.
Rapid laboratory turnaround - Results are expected approximately 1–2 days after laboratory receipt.
Professional blood collection - Clinic and suitable home or hotel phlebotomy appointments are available.
Clear pricing - The Follicle Stimulating Hormone test costs £38.
Private FSH Blood Test in London
London Blood Tests provides private FSH testing for people requiring focused reproductive hormone assessment.
The test costs £38 and measures 1 biomarker: Follicle Stimulating Hormone (FSH).
Results are expected approximately 1–2 days after laboratory receipt.
FSH should be interpreted according to sex, age, menstrual-cycle timing and other reproductive hormone results.