Low testosterone in women is one of the most commonly missed hormonal diagnoses in female healthcare. Most conversations about testosterone focus on men, yet testosterone is a critical hormone for women at every stage of adult life. It affects energy, libido, body composition, cognitive clarity, bone density, and mood. When levels fall below the range a woman needs to function well, the consequences are real, measurable, and treatable.
The challenge is that many women experiencing low testosterone symptoms are told their results are “normal,” offered antidepressants, or told that fatigue and low libido are simply part of aging. A more complete hormonal evaluation often tells a different story. This article covers what low testosterone actually means for women, how it is diagnosed, and what the evidence says about treatment. For the broader picture of how hormonal imbalance affects sexual health, or how low testosterone affects multiple body systems at once, those articles provide additional context.
Quick answer
Women produce testosterone in the ovaries and adrenal glands throughout their lives. When levels fall too low, women commonly experience fatigue, low libido, reduced muscle tone, brain fog, and mood changes. Diagnosis requires specific lab testing with age-appropriate reference ranges. Treatment options include low-dose testosterone therapy, which has an established safety profile when properly monitored.
Why Women Need Testosterone and Where It Comes From
Testosterone is classified as an androgen, a category of hormones traditionally associated with male physiology. But women produce testosterone too, and have done so throughout evolution. In women, testosterone is synthesized in the ovaries, the adrenal glands, and to a smaller degree in peripheral tissue such as fat and skin. It circulates at levels roughly 10 to 20 times lower than in men, but at those lower concentrations it still plays a significant physiological role.
Testosterone in women contributes to libido and sexual arousal, energy and motivation, maintenance of muscle mass and strength, bone density (alongside estrogen), cognitive function and memory, and mood regulation. It also acts as a precursor to estradiol via aromatization, meaning that in women, testosterone is part of the estrogen production pathway. A deficiency in testosterone can therefore contribute to estrogen-related symptoms even when estradiol levels appear adequate.
Normal testosterone ranges in women
Total testosterone in women typically ranges from 15 to 70 ng/dL, with significant variation by age. Premenopausal women in their 20s tend toward the higher end of this range, while women over 40 naturally have lower levels. Free testosterone (the biologically active fraction) is often a more useful clinical marker than total testosterone alone, since SHBG (sex hormone-binding globulin) levels significantly affect how much testosterone is actually available to tissues.
What Causes Low Testosterone in Women?
Testosterone levels in women decline gradually from around age 30 onward, with a more significant drop at menopause. But low testosterone is not exclusively a menopause-related condition. Several factors can reduce testosterone levels in women at any age.
Common Causes of Low Testosterone in Women
Age and menopause
Ovarian testosterone production declines steadily from the 30s onward. Surgical menopause (oophorectomy) causes an abrupt 50% reduction.
Oral contraceptives
Oral estrogen-containing contraceptives raise SHBG, binding free testosterone and reducing the biologically active fraction significantly.
Adrenal insufficiency
The adrenal glands produce DHEA, a precursor to testosterone. Adrenal fatigue or insufficiency reduces this production pathway significantly.
Chronic stress and cortisol
As with men, pregnenolone steal under chronic stress diverts precursors from testosterone production to cortisol. See our article on cortisol and hormonal imbalance.
Hypopituitarism
Pituitary dysfunction reduces LH secretion, which drives ovarian testosterone production. Low LH leads to reduced ovarian androgen synthesis.
High SHBG
Elevated sex hormone-binding globulin binds testosterone, reducing free (active) levels even when total testosterone appears in range. Common with thyroid imbalance.
Multiple causes frequently occur simultaneously. A woman on oral contraceptives under chronic work stress in her 40s may have three simultaneous reasons for low free testosterone.
Symptoms of Low Testosterone in Women
The symptom profile of low testosterone in women overlaps significantly with other hormonal conditions, which is part of why the diagnosis is frequently missed. The symptoms most strongly associated with androgen insufficiency in women (as identified in clinical research including the Princeton Consensus Statement on female androgen insufficiency) are the following:
Persistent fatigue that is disproportionate to activity level and does not resolve with rest. This is consistently the most reported symptom among women with confirmed low testosterone.
Reduced sexual desire and difficulty with arousal. Testosterone is a primary driver of libido in women just as in men. Diminished desire that developed over months or years (rather than being situational) is a strong indicator of androgen insufficiency.
Difficulty maintaining or building muscle, even with regular exercise. Testosterone is anabolic in women as well as men. Women with low testosterone often notice that their training results deteriorated without explanation.
Brain fog and reduced cognitive clarity, including difficulty with word recall, sustained concentration, and mental sharpness. Testosterone has well-documented cognitive effects in women through androgen receptors in the brain.
Mood changes including low motivation, mild depression, and emotional flatness. These symptoms are frequently attributed to anxiety or depression and treated pharmacologically without hormonal evaluation.
Reduced bone density, particularly relevant for women approaching or past menopause. Testosterone contributes independently to bone maintenance alongside estrogen.
Thinning hair and changes in skin quality. Androgens support hair follicle function and skin thickness. Very low androgen levels (as distinct from high androgens in PCOS) can cause hair thinning, particularly at the temples and crown.
Important: not every case of fatigue or low libido is hormonal
The symptoms listed above overlap significantly with thyroid dysfunction, iron deficiency anemia, depression, sleep apnea, and perimenopause-related estrogen changes. A proper hormonal evaluation rules out or identifies co-existing conditions rather than attributing everything to one hormone. Low testosterone rarely exists in isolation in women, and treating it effectively requires understanding the full hormonal picture.
How Low Testosterone in Women Is Diagnosed
Diagnosis requires laboratory testing combined with clinical symptom assessment. A single total testosterone value is rarely sufficient. The following panel provides a meaningful baseline for evaluating androgen status in women:
Recommended Lab Panel for Women with Low Testosterone Symptoms
Androgen Panel
Total testosterone (morning draw, fasting)
Free testosterone (calculated or direct)
SHBG (sex hormone-binding globulin)
DHEA-S (adrenal androgen reserve)
Free androgen index (FAI)
Female Hormone Panel
Estradiol (E2)
Progesterone
LH and FSH (ovarian function markers)
Prolactin
AMH if reproductive assessment needed
Metabolic and Thyroid
TSH, free T3, free T4
Fasting glucose and insulin
HbA1c
Comprehensive metabolic panel (CMP)
Supporting Tests
CBC (complete blood count)
Ferritin and iron panel
Morning cortisol
IGF-1 (growth hormone screen)
In premenopausal women, labs should ideally be drawn in the early follicular phase (days 2 to 5 of the cycle) for the most stable baseline. Morning draws are preferred. Oral contraceptive use should be noted as it significantly alters SHBG and free testosterone values.
According to guidance from the International Society for the Study of Women’s Sexual Health (ISSWSH), a diagnosis of androgen insufficiency in women should be based on the combination of clinical symptoms and biochemical confirmation of low testosterone, not laboratory values alone. A woman with clear symptoms and testosterone in the lower quartile of the normal range for her age deserves evaluation and discussion of treatment options even if her value falls within the formal reference range.
Low Testosterone Across Different Life Stages in Women
The experience of low testosterone differs depending on a woman’s stage of life, what other hormones are in play, and whether the decline was gradual or abrupt.
Premenopausal women (20s to early 40s)
Low testosterone in younger women is frequently linked to oral contraceptive use (through SHBG elevation), hypothalamic amenorrhea (from low body weight or excessive exercise), hypopituitarism, or adrenal dysfunction. Symptoms are often attributed to stress, burnout, or depression. Women in this group who present with fatigue, absent libido, and reduced exercise performance should have a full androgen panel before any psychiatric or lifestyle-only treatment is initiated.
Perimenopausal women (40s to early 50s)
This is the period of greatest hormonal variability. Estrogen fluctuates widely, progesterone declines, and testosterone follows a gradual downward trend. Many women first notice low testosterone symptoms during perimenopause and conflate them entirely with estrogen changes. In practice, both hormones may be contributing simultaneously, and replacing estrogen alone without addressing testosterone deficiency often leaves a subset of symptoms (particularly fatigue, libido, and muscle function) incompletely resolved.
Postmenopausal women and surgical menopause
After natural menopause, testosterone levels stabilize at a lower but generally consistent level from remaining adrenal production. After surgical menopause (bilateral oophorectomy), testosterone drops by approximately 50% within days of surgery, producing an abrupt androgen deficiency syndrome. Women who undergo oophorectomy and are not offered androgen replacement alongside estrogen therapy frequently experience severe fatigue, absent libido, and accelerated muscle and bone loss that estrogen alone does not adequately address.
Clinical note
The menopause transition also involves declining growth hormone output, which further compounds fatigue, body composition changes, and cognitive symptoms. In women where both testosterone and GH are declining simultaneously, addressing only one hormone often produces partial results. Our article on distinguishing GH deficiency from low testosterone covers how to identify when both are contributing.
Treatment Options for Low Testosterone in Women
Treatment of low testosterone in women is an active and evolving area of clinical practice. Unlike testosterone therapy in men, there are no FDA-approved testosterone products specifically formulated for women in the United States, which creates a regulatory gap that many women and their providers find confusing. This does not mean the treatment is unavailable or unsupported by evidence. It means that clinicians who specialize in this area prescribe testosterone off-label using evidence-based protocols at doses appropriate for the female physiology.
Topical testosterone (cream or gel)
The most commonly used approach for women is low-dose compounded testosterone cream or gel, applied daily to a small skin area (typically the inner arm or thigh). Doses are approximately one-tenth to one-twentieth of those used in male TRT. Multiple randomized controlled trials have demonstrated improvements in libido, energy, and quality of life with topical testosterone in women, with a favorable safety profile when used at physiologically appropriate doses. The Menopause Society (formerly NAMS) supports the use of testosterone therapy for hypoactive sexual desire disorder in postmenopausal women based on accumulated clinical evidence.
Testosterone pellets
Subcutaneous pellets deliver a slow-release dose of testosterone over 3 to 5 months, providing stable levels without the need for daily application. Pellets for women use much smaller doses than those used in male protocols. The advantage is consistency of delivery. The limitation is that dose adjustments cannot be made until the pellet dissolves. For women who want to understand the practical differences between delivery formats, our article on TRT delivery methods in real life covers this in detail, though written primarily from a male perspective.
DHEA supplementation
DHEA (dehydroepiandrosterone) is a precursor to both testosterone and estrogen. Supplemental oral or vaginal DHEA can modestly raise testosterone levels in women with low DHEA-S, particularly in the postmenopausal group. Intravaginal DHEA (prasterone) is FDA-approved for genitourinary syndrome of menopause. Oral DHEA has a more variable response rate and requires monitoring to avoid supraphysiologic androgen conversion.
Addressing underlying causes
In women where low testosterone is secondary to another condition (oral contraceptive-induced SHBG elevation, thyroid dysfunction, elevated cortisol, or hypopituitarism), treating the underlying cause may partially or fully restore testosterone availability without direct androgen supplementation. For example, discontinuing oral contraceptives and switching to a non-estrogen contraceptive method often leads to a meaningful increase in free testosterone within several months.
Tip: Monitoring during treatment
Women receiving testosterone therapy should have follow-up labs at 6 to 8 weeks after initiation to verify levels are in the appropriate female range, with annual monitoring thereafter. Signs of over-treatment (supraphysiologic testosterone) include acne, oily skin, clitoral sensitivity changes, and voice deepening. These are avoidable with correct dosing and monitoring. Women should also have a complete blood count (CBC) periodically, as testosterone can influence red blood cell production.
Frequently Asked Questions
Can women really have low testosterone? I thought it was only a male hormone.
Yes, absolutely. Women produce testosterone throughout their lives in the ovaries and adrenal glands. It is present at lower concentrations than in men but plays equally important roles in libido, energy, muscle maintenance, cognitive function, and mood. The medical literature has recognized androgen insufficiency in women as a clinical entity for over two decades. The assumption that testosterone is a “male hormone” that women do not need is one of the primary reasons the diagnosis is so frequently missed.
What is a normal testosterone level for women?
Total testosterone in women typically ranges from 15 to 70 ng/dL, though ranges vary by laboratory and age. Women in their 20s naturally have higher levels than women in their 50s. Free testosterone is often the more clinically useful value. A woman with total testosterone of 18 ng/dL and high SHBG may have very little free testosterone available to tissues, even though her total value falls within the reference range. Symptom context must always accompany lab interpretation.
Is testosterone therapy safe for women?
At physiologically appropriate doses (maintaining testosterone within the normal female range), testosterone therapy has a well-established safety profile in women. The evidence base includes dozens of randomized controlled trials and systematic reviews. The primary safety concerns arise from supraphysiologic dosing, not from treatment at normal female physiological levels. Regular monitoring of levels, blood counts, and symptoms ensures treatment remains appropriate. Women with certain hormone-sensitive cancers should discuss the risk-benefit profile with their oncologist before initiating any hormone therapy.
Will testosterone therapy make me look or sound more masculine?
Not at therapeutic doses within the female physiological range. Virilizing effects such as voice deepening, significant clitoral enlargement, or male-pattern hair growth only occur at supraphysiologic doses (far above what is used in female hormone therapy). Low-dose testosterone therapy as used in clinical practice aims to restore levels to where they were in the patient’s 20s or 30s. Women who notice any of these signs should have their levels rechecked and the dose adjusted accordingly.
How long does it take for testosterone therapy to work in women?
Most women notice initial improvements in libido and energy within 4 to 8 weeks of starting testosterone therapy at an optimized dose. More significant improvements in muscle tone, cognitive clarity, and mood often become apparent at 3 to 6 months. Individual response varies based on the severity of deficiency, whether other hormones are also being addressed, and lifestyle factors. Follow-up labs at 6 to 8 weeks allow dose adjustments that can meaningfully accelerate the response.
Does low testosterone in women affect fertility?
Low testosterone itself does not directly cause infertility. However, the underlying conditions that cause low testosterone (hypothalamic dysfunction, hypopituitarism, premature ovarian insufficiency, adrenal disorders) can affect ovarian function and fertility. Women who are actively trying to conceive should not use exogenous testosterone, as it can suppress ovulation and is teratogenic. Fertility-focused hormonal evaluation should look at the full ovarian and pituitary picture rather than testosterone in isolation.
My doctor says my testosterone is normal. Can it still be causing my symptoms?
Possibly, for several reasons. First, if only total testosterone was measured and SHBG is high, free testosterone (the biologically active fraction) may be low despite a normal total. Second, reference ranges are population-based and not individually optimized. A woman whose testosterone was 55 ng/dL in her 30s and is now 18 ng/dL in her 40s has experienced a meaningful clinical decline even if both values fall “within range.” Third, symptoms should always be interpreted alongside lab values rather than using labs as the sole gatekeeping criterion. Seeking evaluation from a provider experienced in female hormone health is the most productive path forward.
Is low testosterone in women related to low estrogen or menopause?
They often co-exist but are distinct conditions with different mechanisms and different treatment targets. Estrogen declines sharply at menopause due to loss of follicular estradiol production. Testosterone declines more gradually from the late 30s onward and is maintained at lower levels by adrenal production after menopause. A postmenopausal woman on estrogen therapy who still has significant fatigue, absent libido, and poor muscle function may have unaddressed testosterone deficiency that estrogen replacement alone does not resolve. Evaluating both hormones (and progesterone) gives a more complete picture than evaluating either in isolation.
Experiencing fatigue, low libido, or other symptoms that may be hormonal?
Our specialists evaluate the full female hormone picture, including testosterone, estradiol, progesterone, thyroid, and adrenal function, and design a treatment plan based on your individual lab results and symptoms.
This article is for informational and educational purposes only. It does not constitute medical advice, a diagnosis, or a treatment recommendation. Hormonal imbalances in women can have multiple causes, and proper evaluation by a licensed healthcare provider is required before initiating any treatment. Testosterone therapy, DHEA supplementation, and hormone replacement therapy are prescription or clinical interventions that must be managed by a qualified clinician with appropriate monitoring. Women with hormone-sensitive medical conditions should consult their specialist before initiating any hormonal treatment. If you are experiencing the symptoms described in this article, consult a licensed provider for appropriate evaluation and testing.
