Before you use this guide
This is general information, not a diagnosis or a substitute for care from a clinician who knows your medical history. Seek urgent help for severe or rapidly worsening symptoms.
What does “female hormone testing” mean?
It is an umbrella term for tests that may include follicle-stimulating hormone (FSH), luteinising hormone (LH), oestradiol, progesterone, prolactin, testosterone and sex hormone-binding globulin. Thyroid tests may also be relevant because thyroid problems can affect periods and wellbeing.
A useful selection depends on the question—such as irregular periods, possible ovulation problems, fertility assessment, symptoms of androgen excess or suspected early menopause. A generic profile cannot diagnose every hormonal condition.
Cycle timing can change the meaning of a result
Hormone levels change through the menstrual cycle. FSH, LH and oestradiol are often requested early in a cycle for particular fertility questions, while progesterone is commonly timed about a week before the next period is expected to assess whether ovulation may have occurred.
The familiar phrase “day 21 progesterone” assumes a 28-day cycle and is not correct for everyone. Record the first day of your last period, typical cycle length and whether cycles are irregular, then follow the timing advised for your purpose.
Contraception, HRT and other medication matter
Hormonal contraception, fertility medication and hormone replacement therapy can alter hormone levels and bleeding patterns. These treatments may make certain tests inappropriate or change how a result should be interpreted.
Do not stop treatment just to obtain a test unless the prescribing clinician advises it. Provide a full list of medication and supplements when arranging or reviewing the result.
What one blood test cannot tell you
Hormonal symptoms often overlap with pregnancy, thyroid disease, stress, weight change, medication effects and other conditions. A result within range does not automatically exclude a problem, while an isolated result outside range does not establish a diagnosis.
Interpretation should consider symptoms, age, cycle pattern, medication and—where relevant—examination or imaging. Persistent abnormal bleeding, severe pelvic pain or symptoms of pregnancy need appropriate medical assessment rather than a self-selected hormone panel.
Information to have before booking
- Your main symptoms and when they began.
- The date of your last period and usual cycle length.
- Pregnancy possibility or fertility treatment.
- Hormonal contraception, HRT and other medication.
- The clinical question you want the test to help answer.
Common questions
Questions about this topic.
It depends on the hormone and the question. Some tests are timed early in the cycle, while progesterone is usually timed relative to the expected next period. Follow test-specific advice.
Sources and further reading
We use authoritative UK guidance and patient information. External sources may be updated after this guide is published.
