Follicle Stimulating Hormone (FSH)
The Follicle Stimulating Hormone (FSH) blood test measures the level of FSH in your bloodstream. FSH is a key hormone produced by the pituitary gland and plays an essential role in regulating reproductive function in both women and men. Because FSH is closely involved in the menstrual cycle, ovulation, and sperm production, testing levels can provide valuable insight into hormonal balance and reproductive health.
FSH levels naturally change throughout life and, in women, fluctuate during the menstrual cycle. Measuring FSH can help assess fertility, investigate menstrual irregularities, and support the evaluation of hormonal changes such as menopause.
- Price: £65
- Code: FSH
- TAT: 1-2 Working Days
- Sample Type: Blood
What is FSH and why is it important?
FSH stimulates the ovaries in women to produce and mature eggs and supports the production of oestrogen. In men, FSH plays a role in sperm production by acting on the testes. Because of its central role in reproductive function, abnormal FSH levels can indicate issues with the ovaries, testes, or pituitary gland.
FSH levels tend to rise when the ovaries or testes are not responding adequately, as the body attempts to stimulate hormone production. For this reason, FSH is often interpreted alongside other hormones such as LH, oestradiol, testosterone, or prolactin.
Why might I need an FSH test?
An FSH test may be recommended if you are experiencing irregular or absent periods, difficulty conceiving, symptoms of menopause, or signs of early puberty or delayed sexual development.
In men, FSH testing may be used when investigating low sperm count, fertility concerns, or hormonal imbalance. It is also commonly requested as part of a broader hormonal assessment to help understand the underlying cause of reproductive or endocrine symptoms.
What do the results mean?
High FSH levels may indicate reduced ovarian or testicular function, which can be seen in menopause or certain fertility-related conditions. Low levels may suggest a pituitary or hypothalamic cause.
FSH results are always interpreted in the context of age, sex, menstrual cycle timing, symptoms, and other hormone results. Your healthcare professional will explain what your result means for you and whether any further testing is appropriate.
How is the test performed?
The FSH test is performed using a simple blood sample collected during a short appointment. The procedure is routine, and our clinical team will ensure you are comfortable throughout.
Do I need to prepare the test?
No special preparation or fasting is required for this test unless you have been advised otherwise. In women, your clinician may advise testing on a specific day of the menstrual cycle.
FAQs
When will I receive my results?
Results are usually available within the stated turnaround time.
Should I discuss my results with a doctor?
Yes, results should always be reviewed with a qualified healthcare professional.
Why Choose Marylebone Diagnostic Centre?
Marylebone Diagnostic Centre provides professional hormone testing in a calm and supportive environment, with fast turnaround times and clear communication.
Our experienced clinical team supports you in understanding your hormone results, helping you make informed decisions about your reproductive and hormonal health.
Book Your FSH Test Today
If you are investigating fertility, menstrual changes, or hormonal balance, book your FSH blood test with Marylebone Diagnostic Centre.
