Hormone Testing

Targeted Investigation of Hormonal Health

Hormones act as chemical messengers throughout the body and influence processes including reproduction, sexual function, menstrual cycles, metabolism, mood and aspects of growth and development. When symptoms suggest that a hormonal imbalance may be contributing, appropriately selected blood tests can provide useful information.

YT Medical offers Hormone Blood Testing for patients who want to investigate specific symptoms or monitor relevant hormone levels. Rather than relying on a generic hormone panel for everybody, testing is selected according to the patient’s sex, age, symptoms, medical history, medication and the clinical question being investigated.

Which Hormones Can Be Tested?

Depending on the reason for testing, investigations may include markers such as testosterone, oestradiol, follicle-stimulating hormone (FSH), luteinising hormone (LH), prolactin and sex hormone-binding globulin (SHBG), alongside other markers where appropriate.

These hormones interact with one another, meaning an isolated result may provide limited information without considering the wider hormonal picture. For example, FSH and LH are produced by the pituitary gland and help regulate reproductive function, while SHBG influences how hormones such as testosterone and oestradiol circulate within the blood.

The exact tests selected should therefore be determined by what is being investigated rather than assuming that every hormone needs to be measured.

When Might Hormone Testing Be Useful?

Hormone testing may be considered where symptoms or history raise questions involving irregular or absent periods, changes in libido, erectile difficulties, increased facial or body hair, fertility concerns or suspected abnormalities in testosterone or reproductive hormone function.

Some symptoms attributed to hormones are relatively non-specific. Tiredness, mood changes, changes in weight and reduced wellbeing can have many possible causes, so hormone testing may sometimes need to sit alongside thyroid, general health or nutritional investigations rather than being interpreted in isolation.

Hormone levels also vary naturally. Oestradiol, FSH and LH can change significantly during the menstrual cycle, while testosterone levels may vary according to factors including time of day. Timing can therefore influence how useful a blood result is.

Understanding Your Results

Hormone results should be interpreted alongside symptoms and relevant clinical information. Reference ranges can differ according to sex, age, menstrual status, laboratory method and the circumstances in which testing was performed.

An abnormal result does not automatically identify the underlying cause. For example, altered hormone levels can originate from the reproductive organs themselves or from the pituitary and hypothalamic systems that regulate them. Medication and existing hormone treatment can also significantly affect results.

Where a result indicates the need for further endocrine, gynaecological, urological or other specialist investigation, appropriate medical follow-up will be recommended.

Hormone Testing and Treatment

Blood testing provides information; it does not automatically mean hormone treatment is required. Where hormone replacement or another prescription medicine may be appropriate, this should follow a suitable clinical assessment rather than being based solely on one laboratory value.

Patients already taking hormonal medication should tell us what they are using before testing because this can influence both the timing and interpretation of results.