What we measure
This test measures levels of key female hormones involved in reproductive health, including fertility, menstruation, menopause, and more. They also play important roles elsewhere in the body, like protecting against heart disease and maintaining bone health. When these hormones are out of balance, it can bring on a range of symptoms or indicate an underlying health issue.
Follicle-stimulating hormone (FSH)
Often working in concert with LH, FSH regulates the function of the ovaries. It helps eggs to mature so that they can be released (ovulation) and to control the menstrual cycle.
Prolactin
Prolactin is a hormone produced by the brain that causes breasts to grow and make milk just after you give birth. If your levels are high but you aren't pregnant or a new parent, this can suggest menstrual or fertility issues.
Oestradiol (17-beta)
This is the most common type of oestrogen within women’s bodies and mainly works to keep the reproductive system healthy. It’s important for ovulation, the menstrual cycle, and fertility, but also contributes to bone and muscle health.

This test can help indicate whether you’ve got a hormone imbalance.
Hormones are chemical messengers that carry instructions around the body, telling it how it should function.
Usually, female hormones work in a delicate balance with each other, but if something happens to upset this then it can bring on a range of symptoms. It can also interfere with our reproductive health—affecting fertility, periods, and more.
A hormone imbalance can be a sign of an underlying condition, too, such as polycystic ovary syndrome (PCOS), uterine fibroids, or endometriosis.
Anyone can take a female hormone test, but it may be especially suitable if you’re aged under 40 and are experiencing symptoms of menopause (like hot flashes, vaginal dryness, or trouble sleeping), are having trouble getting or staying pregnant, have absent or irregular periods, abnormal hair growth, or acne.
Your results:
what to expect
You'll find out your levels of four key female hormones and whether these fall within a healthy range.
Hormone levels are measures in units that describe how much of them are present in your blood, such as picograms per millilitre (pg/mL). A picogram is one-trillionth of a gram. But what matters most is how your measurements compare to the normal ranges.
If any of your readings is above or below the healthy range, this could indicate a hormone imbalance. This might help to explain any symptoms you’ve been experiencing in terms of periods or fertility, or others that are linked to shifting hormone levels (like acne and mood swings).

Need help? Speak with an expert
Don’t quite understand your results or simply want to see a doctor? We’ve got you sorted.
Speak to a GP
Book an online consultation with one of our GPs. We offer consultations in both English and Chinese.
Just fill out an online form and find a time that’s convenient.
Get a private prescription
Need to get your medication? Our GPs can write private prescriptions.
Tell the GP what the problem is during your consultation and they’ll take it from there. Prescriptions can be picked up at your local pharmacy.
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FAQs
Biotin supplements, which are a type of vitamin B, can influence your test results. It can be taken on its own and its sometimes included in multivitamins. It’s recommended that you stop taking biotin supplements for at least 48 hours before your test.
Other than that, there’s nothing else specific you need to prepare.
Nope, no fasting is necessary for this female hormone test.
Because prolactin levels can shift throughout the day, it’s best to have your test done when they’re at their highest, which is around 10am in the morning.
Hormones can also vary across your menstrual cycle, so it’s recommended that you do a test between days 2-5 of your cycle. This is when levels tend to be relatively stable—before the more dramatic shifts that happen to trigger ovulation and menstruation.
Prolactin levels are generally on the low side for people who aren’t pregnant or have just given birth. But, if you haven’t yet gone through menopause and have high prolactin, you might have the following symptoms:
- Irregular periods
- Having your periods stop completely before the age of 40. This is called premature menopause
- Infertility
- Breast tenderness
If you have gone through menopause, excess prolactin can cause hypothyroidism, which is when the thyroid gland doesn’t produce enough hormones. Symptoms of hypothyroidism include fatigue, weight gain, muscle pain, constipation, and trouble tolerating cold temperatures.
Some medications can raise levels of prolactin and FSH. For prolactin, these include birth control pills, high blood pressure medicine, and antidepressants; FSH can increase if you use cimetidine, clomiphene, digitalis, levodopa, and others. You should let your health provider know if you’re taking any medication prior to taking the test.
Our blood tests are safe and accurate. We’re regulated by the CQC, which is a quality mark for health services you can trust, UKAS accredited, and listed on the UK government website.
All of our tests are validated by HCPC clinical scientist and GMC registered doctors.
Generally speaking, you should consider a female hormone test if you’re experiencing any symptoms that could be due to a hormone imbalance. These symptoms can be really general in nature, so a blood test can help you figure out whether they’re linked to your hormones.
- Symptoms of a hormone imbalance include:
- Signs of menopause if you’re aged under 40, including vaginal dryness, hot flashes, and trouble sleeping
- Difficulty becoming or staying pregnant
- Irregular periods
- Absent periods
- Acne
- Abnormal hair growth
