Hyperandrogenism is a condition where your body produces or circulates too many androgens, a group of sex hormones that includes testosterone. While androgens are often thought of as “male hormones,” everyone produces them. They play a role in puberty, bone density, muscle development, and reproductive health. Problems arise when androgen levels climb too high, particularly in women, where even modest elevations can trigger a cascade of physical and metabolic changes.
The condition is most commonly seen in women of reproductive age, largely because its leading cause, polycystic ovary syndrome (PCOS), affects up to 15% of women in that age group. Hyperandrogenism can be “clinical,” meaning it shows up as visible symptoms like excess hair growth, or “biochemical,” meaning androgen levels are elevated on blood tests without obvious outward signs. Many people have both.
How Excess Androgens Affect the Body
The three hallmark symptoms of hyperandrogenism are unwanted hair growth, acne, and hair thinning. They all stem from the same basic mechanism: androgens reach tissues that are sensitive to them, like hair follicles and oil glands, and ramp up activity that would otherwise stay quiet.
Hirsutism, or male-pattern hair growth in women, is the most recognizable sign. This means coarse, dark (terminal) hair appearing in places like the chin, upper lip, chest, lower abdomen, and back. Clinicians grade its severity using a tool called the modified Ferriman-Gallwey score, which evaluates nine body areas on a 0-to-4 scale. A total score of 8 or higher is generally considered hirsutism, with 8 to 16 classified as mild, 17 to 24 as moderate, and above 24 as severe. The threshold varies by ethnicity: it’s as low as 2 in Han Chinese women and as high as 9 in Middle Eastern, Mediterranean, South Asian, and Hispanic women.
Acne develops because oil glands in the skin can convert testosterone into a more potent form that drives excess sebum production. This is why hormonal acne often clusters along the jawline, chin, and lower face, and why it tends to resist standard topical treatments. Hair loss follows a different path. In hyperandrogenism, thinning typically starts at the crown of the head in a pattern similar to male baldness. Among women who visit a doctor for this type of hair loss, 26% to 84% turn out to have elevated androgen levels on blood work.
PCOS: The Most Common Cause
Polycystic ovary syndrome accounts for the vast majority of hyperandrogenism cases. The relationship between the two is so intertwined that hyperandrogenism is one of the key diagnostic criteria for PCOS itself.
In PCOS, the ovaries overproduce androgens due to dysfunction in the cells that line developing follicles (theca cells). This overproduction disrupts the hormonal signals that control ovulation, leading to irregular or absent periods and the small fluid-filled cysts that give the syndrome its name. High androgen levels interfere with the brain’s regulation of reproductive hormones, causing an excess of luteinizing hormone (LH) relative to follicle-stimulating hormone (FSH). That LH surplus, in turn, pushes the ovaries to make even more androgens, creating a feedback loop that sustains the condition.
Insulin resistance plays a critical amplifying role. Insulin doesn’t just regulate blood sugar. It also acts on the ovaries, boosting androgen production alongside LH. When your body becomes resistant to insulin, it compensates by producing more of it. That excess insulin drives androgen levels higher and simultaneously reduces the liver’s production of sex hormone-binding globulin (SHBG), a protein that normally binds to testosterone and keeps it inactive. The result is more free testosterone circulating in your blood, worsening symptoms like hirsutism and acne. In many adolescent girls with PCOS, insulin resistance actually appears before androgen levels rise, suggesting it may be one of the earliest triggers rather than a consequence.
Other Causes Worth Knowing
Non-classic congenital adrenal hyperplasia (NCCAH) is the second most important cause to rule out. This is a genetic condition where the adrenal glands, which sit on top of your kidneys, lack a key enzyme needed to produce cortisol efficiently. The glands compensate by ramping up production along a different hormonal pathway, which generates excess androgens as a byproduct. NCCAH can look almost identical to PCOS on the surface, with similar patterns of acne, hirsutism, and irregular periods. Distinguishing the two requires specific blood tests. A hormone called 17-hydroxyprogesterone tends to be elevated in NCCAH, though about 25% of women with PCOS also show modest increases, which can complicate the picture. Newer markers related to a specific class of androgens (11-oxyandrogens) appear to be more reliable at separating the two conditions.
Androgen-secreting tumors on the ovaries or adrenal glands are rare but important to recognize. The key difference is speed: symptoms from tumors come on rapidly, often over weeks to months rather than years. Red flags include a voice that suddenly deepens, significant enlargement of the clitoris, and a rapid increase in muscle mass. These changes can be irreversible if the tumor isn’t identified and treated quickly, so sudden onset of virilizing symptoms warrants urgent evaluation.
How Hyperandrogenism Is Diagnosed
Diagnosis typically involves both a physical exam and blood work. On the lab side, the standard panel measures total testosterone, free testosterone, and DHEAS (a weaker androgen produced mainly by the adrenal glands). Free testosterone is often the most sensitive marker because it measures the portion of testosterone not bound to SHBG, which is the portion actually active in your tissues. There are no universally agreed-upon cutoff values since reference ranges vary by lab, assay method, and population. One well-characterized study in Chinese women of reproductive age established upper limits of 2.39 nmol/L for total testosterone and 26 pmol/L for free testosterone, though your own lab will report its specific reference range.
A normal blood test doesn’t necessarily rule out the condition. Some women have clear clinical signs of hyperandrogenism, like a Ferriman-Gallwey score above 8, with perfectly normal circulating androgen levels. This happens because certain tissues convert testosterone locally into a more potent form, and that local activity doesn’t always show up in a blood draw. In these cases, clinical hyperandrogenism alone is enough for diagnosis.
The Metabolic Connection
Hyperandrogenism is not just a cosmetic concern. The metabolic disturbances that often accompany it, particularly when driven by PCOS, carry long-term health consequences. The relationship between excess androgens, insulin resistance, and metabolic syndrome forms what researchers describe as a self-perpetuating vicious cycle. Excess insulin drives androgen production, and those androgens further impair insulin sensitivity, promoting abnormal cholesterol levels, altered glucose metabolism, and other features of metabolic syndrome.
These metabolic changes can occur even in women who are not overweight, which is a point that often surprises people. Insulin resistance and impaired glucose tolerance appear in lean women and adolescents with PCOS, suggesting these imbalances are intrinsic to the hormonal disruption rather than simply a result of carrying extra weight. Over a lifetime, women with PCOS-related hyperandrogenism face an increased risk of type 2 diabetes, cardiovascular complications, and pregnancy complications.
Treatment Approaches
Treatment targets both the visible symptoms and the underlying hormonal imbalance, and the most effective approach combines several strategies.
Combined oral contraceptives are a first-line option for many women. Regardless of which specific formulation is used, the estrogen component suppresses ovarian androgen production and raises SHBG levels, reducing the amount of free testosterone in circulation. The net effect of all combined pills is anti-androgenic, though pills containing newer-generation progestins may offer additional benefit for women who don’t respond well to older formulations.
Spironolactone is the most commonly used androgen blocker. It works by preventing androgens from binding to their receptors in tissues like hair follicles and oil glands. Doses as low as 25 mg daily can improve acne, with many people eventually using 100 to 200 mg daily for more significant hirsutism. Because it can cause birth defects, it’s almost always prescribed alongside contraception.
For hirsutism specifically, the best results come from combining medication with physical hair removal methods like laser treatment or electrolysis. Medications slow new hair growth but don’t eliminate existing terminal hairs, so pairing them with direct removal addresses both the current problem and prevents worsening. It typically takes several months before the effects of anti-androgen therapy become noticeable, since hair follicles cycle slowly.
Lifestyle changes matter significantly when insulin resistance is part of the picture. Even modest weight loss, in the range of 5% to 10% of body weight, can lower circulating androgens, improve insulin sensitivity, and restore more regular ovulation. But because insulin resistance can exist independently of weight, dietary changes that reduce insulin spikes (like limiting refined carbohydrates) are relevant for lean women with hyperandrogenism too.