Women make testosterone, need it, and lose it gradually with age. It plays a part in sexual desire, energy, muscle and bone. When levels are low and symptoms fit, carefully dosed testosterone can help, particularly with low libido after menopause. It is not a cure for fatigue on its own, and it only makes sense after testing has ruled out the other common causes.
Testosterone is usually described as the male hormone, and that framing has cost women a great deal. A woman’s body produces it every day, in the ovaries and the adrenal glands, and it is one of the hormones that changes quietly through her forties and fifties while most of the attention goes to estrogen.
What does testosterone do in a woman’s body?
In women, testosterone works at a far lower level than in men, but the jobs overlap more than most people expect.
Sexual desire and response. This is the effect best supported by research. Testosterone contributes to libido, arousal and the ability to feel satisfied.
Muscle and strength. It helps the body build and keep lean tissue, which matters more every year after forty, when muscle becomes one of the strongest predictors of how well you age.
Bone. Along with estrogen, it supports bone density.
Energy and drive. Many women describe a flatness when levels are low: not sadness exactly, more the absence of the spark that used to be there. The evidence here is less firm than for libido, and it is worth being honest about that.
When does testosterone drop in women?
Unlike estrogen, which falls steeply around menopause, testosterone declines slowly and steadily, starting as early as a woman’s twenties. By the time of menopause, many women have roughly half the testosterone they had at their peak.
Some situations cause a sharper drop: surgical removal of the ovaries, certain chemotherapy, and long-term use of some oral contraceptives, which raise a protein that binds testosterone and leaves less of it free to act.
Symptoms of low testosterone in women
The symptom most closely tied to low testosterone is a drop in sexual desire that is causing you distress. Others women commonly report:
- Low energy that sleep does not fix
- Lower motivation and a sense of flatness
- Harder work to build or hold muscle
- Thinning or weaker hair
- Less resilience after exercise
Every item on that list belongs to other conditions too. Thyroid disease, iron deficiency, depression, sleep apnea, relationship strain, medication side effects and estrogen loss can each produce most of it. That overlap is exactly why we do not start with a prescription.
How is low testosterone tested in women?
A blood test measures total testosterone and, ideally, free testosterone and SHBG, the binding protein that decides how much of it your tissues can actually use. Two women with the same total level can have very different amounts available, which is why one number is rarely enough.
Testosterone is read alongside estradiol, progesterone, thyroid markers, iron and vitamin D, because treating one hormone in isolation tends to miss what is actually going on. For some women, a DUTCH urine test adds detail on how hormones are being processed.
There is one honest caveat. Women’s lab ranges for testosterone are wide and the tests are less precise at low levels, so the numbers guide the decision without making it alone. Symptoms, history and the full panel matter as much as any single result.
Is testosterone therapy safe for women?
The strongest position on this comes from an international consensus statement backed by major menopause and endocrine societies. It supports testosterone for postmenopausal women with low sexual desire that causes them distress, once other causes have been addressed, at doses that keep levels within the normal female range.
What it does not support is testosterone as a general energy or anti-aging treatment, or doses that push a woman into the male range. That is where side effects such as acne, unwanted hair growth and, at genuinely excessive doses, voice changes come from.
In the United States there is no FDA-approved testosterone product made for women. Treatment therefore uses compounded preparations at women’s doses, or very small amounts of other forms. That is a reason to be treated by someone who measures carefully and rechecks, not a reason to avoid treatment altogether.
How testosterone is given to women
The common options are a low-dose cream applied to the skin and testosterone included in hormone pellets, often alongside estrogen and progesterone where those are also needed. We have written about the trade-offs between pellets, creams and injections in more detail.
Whatever the form, the pattern is the same: start low, retest, adjust, and judge success by whether you actually feel the difference you came in for.
Testosterone for women at Alluring Age
At our West Islip office, serving women across Long Island, Suffolk County and Nassau County, testosterone is considered as part of a full hormone picture rather than on its own. It starts with a conversation and a proper panel, and it is only offered when the results and your symptoms point the same way.
Learn more about bioidentical hormone therapy and menopause hormone therapy, or book a consult.
