Sex hormone tests: the key to understanding hormonal balance

Every body has its own unique «hormonal signature.» Sex hormones are responsible not only for reproductive function, but also for overall well-being, energy, sleep quality, and emotional state. Even a small imbalance can affect fertility, weight, appearance, and mood. That’s why sex hormone tests is one of the basic diagnostic methods in endocrinology and gynecology.

What hormones are tested most often?

For a comprehensive assessment of the state of the reproductive system, the following hormones are examined:

• Estradiol — a key female hormone that affects ovulation, bone tissue, and skin condition.

• Progesterone — prepares the body for pregnancy and regulates the cycle.

• Testosterone — a male hormone that is also important for women in small amounts.

• LH and FSH — control the function of the ovaries and testicles, affect ovulation.

• Prolactin — regulates lactation and participates in hormonal balance.

• Anti-Müllerian hormone (AMG) — a marker of ovarian reserve in women.

When should you think about getting tested?

Sex hormone tests are prescribed in the following cases:

• suspected infertility in women and men;

• menstrual cycle disorders or absence of menstruation;

• symptoms of polycystic ovary syndrome;

• decreased libido, erectile dysfunction;

• before planning pregnancy or IVF;

• premature menopause or delayed sexual development in adolescents.

Features of preparation for tests

• Blood is donated on an empty stomach (optimally in the morning).

• For 24 hours, you should avoid stress, heavy training, and alcohol.

• Women should clarify the optimal days of the cycle for each hormone (for example, FSH and LG are given on days 3–5, and progesterone on day 21).

• Men are recommended to avoid physical overload and overheating (bath, sauna) before the test.

Hormones and diagnostic significance

Why is it important to know your hormonal profile?

Hormonal changes do not always manifest themselves abruptly. Irregular cycles, skin problems, emotional swings, and sleep disturbances are just the tip of the iceberg. A competent analysis of sex hormones helps to detect hidden endocrine disorders in time and select treatment before complications arise.

How is the research going?

Venous blood is used to determine hormone levels. Modern laboratories use enzyme-linked immunosorbent assay or chemiluminescent assay, which guarantees high accuracy of results. The interpretation should be done by a doctor, taking into account the clinical picture and individual characteristics.

What do the results show?

Interpretation of results depends on the patient's gender, age, and condition.

• Increased testosterone in women may indicate polycystic ovary syndrome or a tumor.

• Reduced estrogen — about approaching menopause or problems with the ovaries.

• High prolactin — about pituitary pathologies or stress.

For an accurate interpretation of the results, you should consult an endocrinologist or gynecologist.

Why is it important to check hormones regularly?

Hormonal disorders often manifest gradually: skin problems, weight changes, fatigue or mood swings. Early diagnosis allows you to avoid serious diseases such as infertility or endocrine pathologies.

Hormonal balance is the foundation of physical and emotional health. Timely diagnosis will help avoid many problems, from infertility to chronic fatigue. Regular hormone testing is an investment in the quality of life.

Author: Ulyana Anatolyivna Dzyuba

Director of Medi Lab Plus LLC, a doctor of the highest category. Has over 45 years of practical experience in medicine and laboratory diagnostics. Founder and head of the laboratory since 2007. More details…