Testosterone in women is influenced by a surprisingly wide range of factors, from medical conditions and body composition to exercise, sleep, and diet. Normal levels for a 30-year-old woman fall roughly between 15 and 46 ng/dL, with a natural decline as you age. Understanding what pushes those levels higher (or lower) can help you make sense of symptoms, lab results, or changes in how you feel.
PCOS and Insulin Resistance
Polycystic ovary syndrome is the most common medical cause of elevated testosterone in women. The connection runs through insulin. When your body becomes resistant to insulin and starts producing more of it to compensate, that excess insulin directly stimulates the ovaries to produce androgens, including testosterone. At the same time, high insulin suppresses a protein made by the liver called sex hormone-binding globulin (SHBG), which normally binds to testosterone and keeps it inactive. Less SHBG means more free testosterone circulating in your blood, which is the form that actually affects your body.
Excess insulin also triggers the pituitary gland to release more luteinizing hormone (LH), which further amplifies androgen production in the ovaries. This creates a reinforcing cycle: insulin resistance drives testosterone up, which can disrupt ovulation, promote weight gain around the midsection, and worsen insulin resistance further. If you have irregular periods, acne along the jawline, or hair growth on the face, chest, or back, PCOS-related androgen excess is one of the first things worth investigating.
Adrenal Conditions
Your adrenal glands, which sit on top of your kidneys, also produce androgens. A condition called non-classic congenital adrenal hyperplasia (NCCAH) is an underdiagnosed genetic condition where the adrenals overproduce androgen precursors due to an enzyme deficiency. Women with NCCAH can have total testosterone levels around 100 ng/dL or higher, well above the normal range. Symptoms often overlap with PCOS, including excess hair growth, acne, and menstrual irregularity, which is why it’s frequently misdiagnosed.
NCCAH is confirmed through hormone testing and sometimes genetic analysis. With treatment, testosterone levels typically drop to around 62 ng/dL within six months and can reach 48 ng/dL within a year.
Androgen-Secreting Tumors
Rarely, a tumor on the ovary or adrenal gland can produce large amounts of testosterone. These cases look dramatically different from PCOS or adrenal hyperplasia. Testosterone levels often climb to 200 ng/dL or higher, sometimes reaching 300+ ng/dL, compared to the normal ceiling of about 45 ng/dL. The symptoms tend to be more severe and progress faster: deepening voice, rapid muscle gain, male-pattern hair loss, and significant facial hair growth over months rather than years. If testosterone levels are extremely elevated and symptoms are progressing quickly, imaging of the ovaries and adrenal glands is typically the next step.
Exercise and Strength Training
Physical activity produces a real but temporary testosterone increase. In a controlled trial of women with regular menstrual cycles, testosterone rose within 15 minutes of finishing a resistance training session. During the follicular phase (the first half of the cycle), levels climbed from about 26 ng/dL at rest to 33 ng/dL after exercise. During the mid-cycle phase, the jump was from roughly 36 to 41 ng/dL.
This spike is short-lived. By 24 hours post-exercise, testosterone actually dropped below the pre-exercise baseline, particularly during mid-cycle. So while strength training does temporarily boost testosterone, it doesn’t sustainably raise your resting levels over time. The benefits of resistance training for women, including improved strength, bone density, and body composition, come through other pathways, not a permanent testosterone increase.
Diet and Body Fat
What you eat has a modest but measurable effect. Women whose diets are higher in total fat tend to have higher circulating testosterone. Comparing the highest-fat diets to the lowest, researchers found about a 4% increase in both total and free testosterone. Polyunsaturated fats (found in nuts, seeds, fatty fish, and vegetable oils) showed a similar association, with a roughly 4% bump at higher intakes.
Four percent is not a dramatic shift, but it’s consistent. For women trying to lower testosterone, as with PCOS, dietary changes that reduce overall fat intake or shift the balance toward whole foods may offer a small additional benefit alongside other interventions. For women hoping to raise low testosterone, diet alone is unlikely to make a meaningful difference.
Body fat itself also plays a role. Fat tissue produces aromatase, an enzyme that converts androgens to estrogen. But excess body fat is also linked to insulin resistance, which raises testosterone through the mechanisms described above. The relationship is complex: obesity in women with PCOS tends to worsen androgen excess, while weight loss often brings testosterone levels down.
Sleep Deprivation
Poor sleep can shift your hormonal balance in both directions depending on the hormone. One night of total sleep deprivation decreased testosterone by 24% while simultaneously increasing cortisol (the body’s primary stress hormone) by 21%. This was a sex-specific finding, meaning the testosterone drop was observed distinctly in the female participants.
Chronic sleep restriction likely has a compounding effect. If you’re seeing symptoms of low testosterone, such as low energy, reduced libido, or difficulty building muscle, consistently poor sleep could be a contributing factor worth addressing before assuming something else is wrong.
DHEA Supplements
DHEA is a hormone precursor that your body converts into both testosterone and estrogen. It’s available as an over-the-counter supplement. A meta-analysis of randomized controlled trials in postmenopausal women found that DHEA at doses of 50 mg per day or higher significantly increased testosterone by about 30 ng/dL on average. Doses below 50 mg per day did not produce a statistically significant change.
That 30 ng/dL increase is substantial for a postmenopausal woman whose baseline testosterone may already be quite low. DHEA supplementation is sometimes used clinically alongside other treatments for sexual dysfunction in postmenopausal women, but because it raises multiple hormones simultaneously, the effects aren’t always predictable. Monitoring for signs of androgen excess, such as acne, oily skin, or hair growth, is important if you’re taking it regularly.
Testosterone Therapy
Prescription testosterone is sometimes used for postmenopausal women experiencing hypoactive sexual desire disorder, a persistent loss of sexual desire that causes distress. The Endocrine Society has noted evidence supporting the short-term effectiveness and safety of testosterone at doses that bring levels to the high end of the normal premenopausal range. This is a much lower dose than what’s used in men, and monitoring for signs of excess is part of the protocol.
There are currently no FDA-approved testosterone products specifically formulated for women, so prescriptions typically involve compounded formulations or carefully dosed versions of products designed for men.
How to Recognize Elevated Testosterone
The clinical gold standard for assessing androgen-driven hair growth is a scoring system that evaluates terminal (coarse, dark) hair at nine body sites: upper lip, chin, chest, upper and lower back, upper and lower abdomen, arms, and thighs. Each site is scored from 0 to 4, with a total score of 8 or higher considered clinical hirsutism. On lab work, total testosterone above roughly 58 ng/dL or free testosterone above 1.9 ng/dL is generally considered elevated.
Symptoms of high testosterone in women include acne (especially along the jaw and chin), thinning hair on the scalp, excess body or facial hair, irregular or absent periods, and in more severe cases, deepening of the voice or changes in muscle mass. If you’re noticing several of these together, a blood test measuring total testosterone, free testosterone, and DHEA-S can help clarify whether androgen excess is the cause.