Women's Hormone + PCOS Panel

Irregular periods, stubborn weight gain, acne, or unwanted hair growth rarely trace back to a single hormone. They usually reflect several systems drifting at once. This panel reads those systems in one blood draw so the pattern, not one lonely number, tells the story.

It looks at the hormones that run your cycle, the pituitary and thyroid signals that can throw it off, the male-type hormones behind acne and hair changes, and the blood sugar and cholesterol markers that often shift quietly alongside them.

What This Panel Reveals

Polycystic ovary syndrome (PCOS) is not one lab value. It is a pattern. A diagnosis requires two of three features: signs of excess male-type hormones, irregular or absent ovulation, and many small follicles on ovarian ultrasound (or a high anti-Mullerian hormone level), with other causes ruled out first. Because two of the three are enough, some women have PCOS without high androgens. That is exactly why a single test cannot settle it and a combined panel can. This panel is built to answer three questions at once: is ovulation disrupted, is there androgen excess, and is something else driving the picture.

The reproductive markers describe how your cycle is behaving. Estrogen and the two pituitary hormones that steer the ovaries, follicle-stimulating hormone (FSH) and luteinizing hormone (LH), sketch the hormonal backdrop, while a timed progesterone tells you whether ovulation actually happened. In PCOS, LH often runs high relative to FSH and progesterone stays low because ovulation is skipped.

The androgen markers test for the excess male-type hormones at the core of PCOS. Total testosterone anchors the reading, but sex hormone-binding globulin (SHBG), the protein that locks testosterone away, decides how much is actually active. Calculated free testosterone, worked out from total testosterone and SHBG, combines both. In a diagnostic meta-analysis, calculated free testosterone flagged androgen excess in 89 percent of PCOS cases (sensitivity 0.89) versus 74 percent for total testosterone alone, which is why measuring the total, the calculated free fraction, and the binding protein together beats any one of them.

The rest of the panel does two jobs. Prolactin (a pituitary hormone) and the thyroid markers, thyroid-stimulating hormone (TSH) and free T4, screen for conditions that imitate PCOS, since both a pituitary problem and thyroid disease can cause irregular cycles. About one in five women with PCOS also carries subclinical hypothyroidism (roughly 20 percent), a mild underactive thyroid linked to higher insulin resistance. The metabolic markers, fasting glucose, HbA1c (a three-month blood sugar average), fasting insulin, and the lipid panel, catch the insulin resistance and cholesterol shifts that ride along with PCOS and shape its long-term risks. Fasting insulin can point to insulin resistance directly, though current guidelines note that insulin assays vary between labs and are not recommended for routine PCOS diagnosis, so it is best read as supporting context rather than a stand-alone test.

How to Read Your Results Together

The value of this panel is in the combinations. The same result means different things depending on what sits next to it. A few patterns cover most cases.

One nuance worth knowing: SHBG explains why total and free testosterone can disagree. When insulin is high, SHBG falls, so free testosterone can be elevated even while total testosterone looks unremarkable. Reading the androgen markers as a set, alongside insulin, is what catches this.

What to Do with Your Results

If the androgen and reproductive markers point to PCOS, the next steps are a pelvic ultrasound or an anti-Mullerian hormone test to complete the diagnostic picture, plus tests to exclude adrenal causes such as 17-hydroxyprogesterone and DHEA sulfate. If prolactin or thyroid markers are off, chase those first, because treating them can restore normal cycles on their own. A raised free testosterone deserves a repeat draw before conclusions, since androgen test results vary between labs.

The metabolic results carry their own action plan. Current PCOS guidelines recommend an oral glucose tolerance test as the most accurate glucose screen for anyone with PCOS, preferred over fasting glucose or HbA1c, which are less accurate alternatives used when the tolerance test cannot be done. An insulin-resistant lipid pattern points toward diet, activity, and sometimes medication. Because PCOS raises long-term risk, retest the metabolic markers and lipids every one to three years while you are actively managing your health, and repeat the reproductive markers whenever symptoms or goals change. Watching the direction between draws matters as much as any single value.

When Results Can Be Misleading

Several confounders hit multiple tests at once. Cycle timing is the big one: FSH, LH, and estradiol are best drawn in the first few days of a period, and progesterone only means something when taken about a week before the next period is due. Hormonal birth control suppresses the pituitary hormones and raises SHBG, so results on the pill do not reflect your natural pattern; guidelines suggest stopping the combined pill for at least three months before androgen testing.

Fasting matters for the metabolic side, since insulin, glucose, and triglycerides all rise after eating. Recent illness or major stress can distort thyroid and reproductive hormones together, and high-dose biotin supplements can skew several hormone test results, so pause them for at least 48 hours before testing.