Testosterone

Testosterone is often thought of as a male hormone, yet women produce testosterone, too. And while the amounts are much smaller than in men, testosterone significantly influences sexual desire, energy, mood, and muscle strength in women. As you move through perimenopause and menopause, testosterone declines along with estrogen and progesterone, and this decline contributes to symptoms many women attribute to other causes.

Women and Testosterone: A Brief Overview

Your ovaries and adrenal glands produce testosterone throughout your reproductive life. During your 20s and 30s, testosterone levels in women are roughly 5 to 10 percent of men's levels, yet this hormone powerfully affects your physiology. Unlike estrogen, which fluctuates cyclically during reproductive years, testosterone is relatively stable and gradually declines over time.

By the time you reach menopause, your testosterone has dropped to roughly half of what it was in your 20s. The decline isn't sudden like it can be with estrogen. Instead, it's a gradual decrease that accelerates slightly around the menopausal transition.

This doesn't mean you need testosterone replacement therapy. Many women feel perfectly fine with lower testosterone levels. But for women who notice specific symptoms, understanding testosterone's role helps you evaluate whether therapy might be worthwhile.

What Testosterone Does in Women's Bodies

Testosterone's effects are distributed throughout your body because testosterone receptors exist in your brain, bones, muscles, vagina, clitoris, and cardiovascular system.

Sexual Desire and Arousal: Testosterone is the primary hormone driving sexual desire in both men and women. It increases spontaneous sexual thoughts, receptivity to sexual stimulation, and the intensity of arousal. When testosterone drops, many women notice a diminished interest in sex, reduced pleasure during sex, or difficulty becoming aroused even when they want to be. This isn't a psychological problem or a reflection of relationship quality. It's a direct hormonal effect.

Energy and Motivation: Testosterone supports physical energy and the motivation to engage in activities. Women with adequate testosterone tend to feel energized, motivated, and capable. As testosterone declines, many women experience a subtle but real loss of drive. Tasks that previously felt manageable feel effortful. Physical activity that was enjoyable becomes less appealing.

Mood and Resilience: Testosterone supports mood stability and emotional resilience. It helps you feel assertive, confident, and capable of handling stress. Low testosterone is associated with dysphoric mood, lack of motivation, and emotional vulnerability. Some women describe the mood effects as feeling less like themselves, less able to bounce back from difficulties.

Muscle Strength and Bone Health: Testosterone supports muscle development and bone density. As it declines, women often notice that maintaining muscle strength becomes harder despite the same level of exercise. Bone health may decline more rapidly.

Metabolic Function: Testosterone influences how your body metabolizes energy and maintains muscle mass. Its decline contributes to the harder-to-lose weight gain many women experience during midlife.

The Experience of Testosterone Decline

The symptoms of testosterone decline in women are sometimes subtle. You might notice:

• Reduced sexual desire or difficulty becoming aroused
• Decreased satisfaction with sex
• Reduced clitoral sensitivity
• Loss of energy or motivation
• Difficulty maintaining muscle tone or strength
• Subtle mood changes, sometimes described as feeling less confident or assertive
• Weight gain despite the same diet and exercise
• Difficulty recovering from exercise or illness
• Brain fog or difficulty concentrating
• Feeling depressed or anhedonic (unable to enjoy things that previously brought pleasure)

Some women experience these changes dramatically and immediately recognize them as hormonal. Others notice them only in retrospect, after testosterone therapy begins, when they realize how different they feel.

Testing Testosterone Levels

Unlike FSH testing, which is unreliable for menopause diagnosis, testosterone testing can be meaningful. However, interpretation requires care.

Normal testosterone ranges in women are typically 15 to 70 ng/dL, though ranges vary by lab. During perimenopause and menopause, lower levels are common. But normal ranges don't tell the whole story. A woman with testosterone levels in the "normal" range might still be symptomatic if her levels have declined significantly from her baseline.

This creates a diagnostic challenge: without knowing what your baseline testosterone was in your 20s, it's hard to determine whether your current level represents a meaningful decline. Some experienced healthcare providers consider symptoms alongside absolute levels. If you're having significant symptoms and your testosterone is below 30 ng/dL, you're more likely to benefit from therapy.

Symptoms and Diagnosis

Your healthcare provider should ask about specific symptoms and their timing. Did your sexual desire begin declining around your late 40s or 50s? Has your energy dropped noticeably? Have you experienced mood changes that feel different from your baseline? These questions help determine whether testosterone decline is actually contributing to your symptoms.

It's also important to consider other factors. Depression, anxiety, relationship issues, medication side effects, hypothyroidism, and other hormonal imbalances can all affect sexual desire and energy. A thorough evaluation should address these possibilities before attributing symptoms solely to testosterone decline.

Testosterone Therapy: What the Research Shows

Evidence for testosterone therapy in menopausal women is still evolving. The research is sparser than for estrogen replacement, partly because testosterone therapy in women has been less studied historically.

What research does show:

For Sexual Function: Studies document that testosterone therapy can improve sexual desire, arousal, and frequency of sexual activity in menopausal women with low testosterone and reduced sexual function. The magnitude of improvement varies, with some women experiencing significant benefits and others experiencing modest improvements.

For Energy and Mood: Some research suggests testosterone therapy can improve energy and general wellbeing in women with androgen insufficiency. However, the evidence is less robust than for sexual function.

For Bone Health: Testosterone supports bone density. Some studies show that testosterone therapy can help maintain bone health in postmenopausal women.

Duration and Dosing: Most research on testosterone therapy involves relatively short-term use (1 to 2 years) because long-term safety data is limited. Dosing is typically low, aimed at raising testosterone toward the lower end of normal ranges rather than above normal.

Combined Therapy: Research suggests testosterone is more effective for sexual function when combined with HRT (estrogen and/or vaginal therapy) than when used alone.

Important Caveats and Considerations

Not all women with symptoms of low testosterone benefit from testosterone therapy. If your sexual desire is low because of relationship issues, depression, or medication side effects, adding testosterone won't address the underlying cause.

Additionally, for postmenopausal women who haven't taken estrogen replacement therapy, testosterone therapy alone may be less effective than combining it with estrogen.

Long-term safety data for testosterone therapy in women is limited. Potential concerns include effects on the breast and cardiovascular system, though current research suggests risks are minimal when testosterone is dosed appropriately. However, women with a history of breast cancer or cardiovascular disease should discuss testosterone therapy carefully with their healthcare provider.

Forms of Testosterone Therapy

Transdermal Patches: Testosterone patches deliver hormone through the skin and provide steady levels. They're generally well-tolerated, though skin irritation can occur.

Topical Creams or Gels: Applied to the skin, these allow flexible dosing but require careful application to avoid accidental transfer to others.

Oral Testosterone: Less commonly used because absorption is variable.

Injectable Testosterone: Intramuscular injections provide more stable levels but require clinical administration.

Dosing varies based on individual response and the form used. An experienced healthcare provider starts with low doses and adjusts based on symptom response and testosterone levels.

Questions to Ask Your Healthcare Provider

If you're considering testosterone therapy:

• Have you measured my testosterone level? What is my result and how does it compare to normal ranges?
• Given my symptoms and testosterone level, do you think I'm a good candidate for therapy?
• What form would you recommend and why?
• How long will it take to notice changes?
• What side effects should I monitor for?
• How will we know if the dose is working?
• How long do you typically prescribe testosterone therapy?

Integration with Broader Menopause Care

Testosterone decline during menopause doesn't happen in isolation. It occurs alongside estrogen and progesterone decline. Many women benefit most from addressing all three hormones together, along with attention to sleep, exercise, stress, and relationship quality.

If you're experiencing low sexual desire or low energy, comprehensive evaluation looking at thyroid function, depression, relationship satisfaction, and medication side effects alongside testosterone levels gives you the most complete picture.

The Bottom Line

Testosterone decline during menopause is real and contributes to changes in sexual desire, energy, and mood in many women. For some women, these changes are subtle or acceptable. For others, they significantly affect quality of life.

Testosterone therapy isn't appropriate for everyone, and it's not a magic solution for sexual or energy problems if the underlying causes are psychological or relational. But for women with genuine testosterone-deficiency symptoms and appropriate medical evaluation, testosterone therapy can meaningfully improve sexual function, energy, and mood.

Having an informed conversation with your healthcare provider about whether your symptoms might reflect testosterone decline and whether therapy could help is a reasonable part of optimizing your menopause care.