Hirsutism Hormone Panel

The Hirsutism Hormone Panel is a blood test package used to investigate hormonal patterns that may be associated with new, progressive, or clinically significant coarse hair growth in women. It measures total and free testosterone, DHEA-S, androstenedione, cortisol, follicle-stimulating hormone (FSH), luteinizing hormone (LH), estradiol, and progesterone.

The panel may be considered when increased facial or body hair appears together with irregular menstrual periods, difficulty becoming pregnant, acne, hair loss, or weight gain and difficulty losing weight. These symptoms do not prove that androgen levels are elevated, but their pattern can help determine whether hormonal testing and further medical evaluation are appropriate.

Hirsutism, hereditary hair growth, and androgen excess

Hirsutism refers specifically to coarse, dark terminal hair developing in areas that are more sensitive to androgens, such as the upper lip, chin, chest, lower abdomen, back, or inner thighs. It is different from having generally dense body hair or fine hair distributed over areas that are not typically androgen-dependent.

Some women have a stable, family-related pattern of facial or body hair without menstrual irregularity, rapid progression, scalp hair thinning, or other signs of hormonal disturbance. Hair density also varies naturally between individuals. In these situations, hormone values may remain within the expected range.

Androgen excess means that one or more androgen-related hormones are elevated or biologically more active than expected. It may be associated with hirsutism, acne, oily skin, menstrual changes, reduced ovulation, or androgen-pattern scalp hair thinning. However, visible hair growth and blood androgen levels do not always correspond closely. Some women have hirsutism with normal measured androgens because their hair follicles are particularly sensitive to these hormones.

What the panel measures

• Total and free testosterone: assess the principal circulating androgen and the portion available to act on tissues.
• DHEA-S: provides information about androgen production that is predominantly associated with the adrenal glands.
• Androstenedione: is an androgen precursor produced by the ovaries and adrenal glands and can be converted into testosterone or estrogens.
• FSH, LH, estradiol, and progesterone: help place androgen findings within the broader menstrual, ovarian, and ovulatory context.
• Cortisol: provides additional information about adrenal hormone activity, although a single cortisol value cannot independently diagnose a cortisol-related disorder.

The individual values must be interpreted together with age, symptoms, menstrual history, medication use, pregnancy status, and the exact day and time of sampling. An isolated result outside the reference interval does not establish its cause, while a normal panel does not exclude every hormonal, dermatologic, or follicular explanation for unwanted hair growth.

Why the menstrual cycle and sampling time matter

Several hormones in this panel vary during the menstrual cycle. Testosterone testing is commonly standardized to an early-morning sample, and values obtained during the early follicular phase, often around cycle days 4 to 10, may be easier to compare with established reference data. The first day of menstrual bleeding is counted as cycle day 1.

This does not mean that one cycle day is ideal for every question. Progesterone is usually more informative for assessing ovulation when measured later in the cycle, while FSH, LH, and estradiol are often interpreted in relation to the early follicular phase. Cortisol also follows a daily rhythm and is generally higher in the morning. Because the panel combines hormones with different biological patterns, the most appropriate sampling day and time should reflect the reason for testing.

Women with irregular, very infrequent, or absent periods may not be able to schedule testing by a predictable cycle day. In that situation, the date of the last menstrual period, typical cycle length, and current symptoms should be provided so the results can be interpreted in context. Hormonal contraception, fertility medication, corticosteroids, androgen-containing products, and other therapies can also affect findings.

How the test is performed

Step 1: Review the reason for testing

Before sampling, it is useful to record when the hair growth began, whether it is progressing, which body areas are involved, and whether menstrual changes, acne, scalp hair thinning, fertility concerns, or changes in body weight are also present.

Step 2: Confirm the sampling day and time

The menstrual cycle day and preferred time of collection should be agreed before the appointment. Patients should not stop hormonal medication, corticosteroids, supplements, or other prescribed treatment unless instructed by the clinician responsible for their care.

Step 3: Venous blood collection

A venous blood sample is collected, usually from a vein in the arm. Serum is used for the listed hormone analyses. The collection itself generally takes only a few minutes.

Step 4: Laboratory analysis and report

The hormones are analyzed separately and reported with the applicable reference intervals. Because androstenedione has the longest listed processing time, completion of the full panel may require approximately 3 to 4 weeks.

What the results can and cannot show

The panel can help identify whether there is laboratory evidence of increased ovarian or adrenal androgen activity and whether reproductive hormone values fit the reported cycle phase. It may also help determine whether additional evaluation by a gynecologist or endocrinologist is appropriate.

The panel does not diagnose polycystic ovary syndrome by itself. PCOS assessment requires a broader evaluation of menstrual and ovulatory function, clinical or biochemical androgen excess, and, when relevant, ovarian morphology. Other conditions that can resemble PCOS or cause androgen excess may also need to be excluded.

Depending on the history and initial findings, additional tests may include SHBG, 17-hydroxyprogesterone, TSH, prolactin, pregnancy testing, glucose and lipid assessment, or targeted imaging. These tests are not part of this panel. A separate progesterone sample later in the cycle may also be needed when the clinical question is whether ovulation occurred.

When faster medical assessment is important

Medical assessment should not be delayed when coarse hair growth develops rapidly over several months or is accompanied by a deepening voice, marked increase in muscle mass, significant menstrual disruption, clitoral enlargement, or other rapidly progressing signs of virilization. These features require more focused assessment and should not be evaluated through a routine hormone panel alone.

Preparing an inquiry

Before requesting the panel, prepare the date of the last menstrual period, usual cycle length, affected hair-growth areas, speed of progression, current medications and supplements, previous hormone results, and information about acne, scalp hair loss, fertility concerns, or weight changes. These details can help clarify the most appropriate sampling time and whether another test or specialist consultation should accompany the panel.

You can send ZagrebMed a short description of the symptoms and any existing laboratory or gynecologic reports to request testing and clarify the next appropriate step in Zagreb.