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Female Hormones

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Results within 2 working days
The female hormone blood test checks for hormone imbalances and includes key fertility hormones along with thyroid function.
What's included
your discount will be applied at checkout

Why Check
Female Hormone

Female hormones fluctuate naturally during a woman’s menstrual cycle, but an imbalance in these hormones can affect general wellbeing such as mood, weight, and energy. 

In addition, a hormonal imbalance can lead to irregular periods and have an effect on fertility and the ability to conceive.

Understanding your own personal hormone levels, how they fluctuate over your cycle and how they change over different life stages can you keep track of any imbalances that may be making you feel less than your best.

When to take This test

The sample for this blood test should be collected on day 3 of your menstrual cycle (day 1 being the first day of your period). If you are not having regular periods, this test can be taken at any time.

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What’s Included In A Female Hormone Test?

The main female hormones in our blood test are Follicle Stimulating Hormone (FSH), Luteinising Hormone (LH) and Oestrogen.

FSH and LH are known as control hormones and together with oestradiol (oestrogen) will identify potential hormonal problems that could affect your menstrual cycle. Changes in these hormone levels prior to the menopause can impact your general wellbeing as well as fertility.

High levels of prolactin can suppress other hormones such as FSH and LH. Raised levels of prolactin outside of pregnancy can be a sign of an underactive thyroid or physiological response to stress.

Testosterone affects bone and muscle mass, the brain, fat distribution throughout the body, energy levels and fertility. High levels of testosterone in women can indicate polycystic ovary syndrome.

Sex hormone-binding globulin (SHBG) controls the amount of testosterone available to your body tissues. So, any irregularities in SHBG could impact your testosterone levels.

The final two hormones that are important for women to test are thyroid stimulating hormone (TSH) and thyroxine.  A thyroid imbalance can result in changes to your weight, mood and energy levels.  They are also important in the metabolic rate of the body as well as bone health, the function of the heart, digestive system and fertility.

Explore our ground-breaking new product

Female Hormone Mapping

Our next generation Female Hormone Mapping™ product combines artificial intelligence, with blood analysis and clinical expertise to provide you with personalised insights into your key female hormone fluctuations over your entire menstrual cycle.

It also provides you with an innovative measurement of your hormone networks so you can track changes in your ovarian responsiveness throughout all your lives.

Symptoms of A Hormone Imbalance

The symptoms of a hormone imbalance in women are similar to the symptoms experienced by women going through the menopause and include:

  • Changes to your periods
  • Weight gain
  • Acne
  • Vaginal dryness
  • Hair loss or thin hair
  • Night sweats
  • Fatigue
  • Muscle weakness or aches, tenderness, or stiffness
  • Mood changes such as depression, anxiety, or irritability
Thyroid conditions
x6 more likely
Women are more x6 time more likely to have a overactive thyroid problem than men.
Female Hormones symptoms
1 in 7 couples
in UK have difficulty conceiving.

improve your unique self

Want to improve your health & wellbeing? Forth gives you insight into your body’s key biomarkers. By tracking essential markers overtime you can build a picture of your own unique self and discover how your body responds to the changes you make so you can reach your personal best.

Frequently asked questions

 Here are some of the most frequently asked questions. If you need anything else try our help section.

  • What causes a hormone imbalance?

    Hormonal imbalance can occur when the endocrine glands are not functioning properly, for example, the thyroid gland and pituitary gland.  An overactive or underactive thyroid can cause a hormonal imbalance.

    If you suffer from chronic stress, then high levels of the stress hormone cortisol will impact the production of other key hormones such as progesterone. The body will create more cortisol by using available progesterone, thus depleting progesterone levels.  Progesterone is a key balancing hormone so will impact the production of other hormones such as oestrogen.

    Conditions such as type 1 and 2 diabetes and Cushing’s syndrome can also result in a hormone imbalance.

    And finally, a poor diet and lack of good nutrition will also have an impact, as well as your age.  As women enter the menopause around their mid-forties their hormones will begin to fluctuate.

  • How do you treat a hormone imbalance?

    If your hormone imbalance is caused by over-exercising, poor diet or stressful lifestyle then changes to these areas will help.

    Ensuring you are eating the right food in the right quantities, especially if you are exercising heavily (training for a marathon or triathlon), is absolutely key to avoiding what’s known as RED-S.  This is when your body is burning more calories than you are consuming and can lead to women’s periods stopping completely.

    Learning to manage stress will reduce the amount of the stress hormone cortisol within your body.

    If your hormone imbalance is caused by a medical condition such as polycystic ovary syndrome then it is best to speak with your GP and discuss treatment.

  • Why do you usually recommend the test to be done on day 3

    Hormones varying during menstrual cycle, therefore traditionally advice is to take day the sample on day 3. However, if it is not possible to take your sample at this time, as there are ranges for different phases of cycle, then day 3 sample is not an absolute requirement. If your sample is taken at another point in your cycle your results range will be adjusted accordingly.

  • What happens if my day 3 falls on a weekend?

    If your ‘day 3’ falls on a weekend we recommend taking your sample 2 days either side of this. For example, if you day 3 falls on a Saturday collect and post your sample on Thursday or Monday.

  • What are the different stages of the menstrual cycle?

    The female menstrual cycle is divided into 4 main phases; menstruation, follicular, ovulation and luteal phase. The follicular phase starts on the first day of your period and ends with ovulation which usually occurs mid cycle. The luteal phase occurs during the last two weeks of your cycle and ends with the first day of your period

  • Is this test still useful if I am using a form of contraception?

    If you are taking a progesterone only form of contraception such as progesterone-only pill, progesterone implant, or Minerva coil then this test is still useful as these forms of conception do not suppress normal production of FSH, LH, or oestradiol. This test is not useful if taking a combined form of conception (progesterone and oestradiol ) e.g the combined oral conceptive pill (COCP).

Want To Personalise Your test?

Would you prefer to test more biomarkers in the same sample of blood? All our tests are customisable and can be tested in just one sample of blood. Click the button below to add more biomarkers to this test.

Service Status

Kit Dispatch

Kits ordered before 1pm from Monday to Friday continue to be dispatched same day via First Class Royal Mail. After 1pm your kit will be dispatched the next working day. Orders placed on the weekend will be despatched Monday.

Postal Service

There may be some delays in parts of the UK occurring, we recommend posting into a priority post box. Click here for updates on the Royal Mail service. Click here for updates on the Royal Mail service.

Lab Analysis

Our labs are operating as normal.

Doctor/nurse reviews

Our doctors and nurses are currently working remotely and continue to review results.

Home phlebotomy appointments

Our home phlebotomy service is running but please be aware, if you or anyone in your household have experienced symptoms of COVID-19 within the last 14 days, due to the current government guidelines, we are unable to arrange an appointment at this time. Due to a high demand for nurses, along with current covid restrictions around the UK, there may be a delay in providing an appointment.

Customer service

Our customer service team are currently working from home, available to answer any questions via email.

Results dashboard

You can continue to access your results as normal either through your browser or via our iOS or Android app.


If you are an employer and would like to order multiple tests for your employees, please complete the form below.