Testosterone and Androgen Physiology in Women: Insights

Testosterone and Androgen Physiology in Women: Subcutaneous Injections in Coordinated Care

Abstract: Testosterone is a normal hormone in women. The ovaries, adrenal glands, and many local tissues help make and use it. Levels fall slowly with age, not all at once at menopause. A single blood test rarely proves deficiency. The strongest research support for testosterone therapy in women is for distressing low sexual desire after menopause, after other causes are checked. Subcutaneous injections can provide steadier levels in some studied groups, but evidence in women is thinner and remains off-label. Integrative chiropractic care does not replace medical decisions about hormones. It can help patients gain pain relief, better mobility, and improved sleep while the medical team keeps treatment coordinated and safe.

Testosterone is a female hormone

Androgens are often called male hormones. That label is incomplete. Testosterone is the main circulating active androgen and a normal part of female biology. Women keep lower amounts than men—typically 10 to 20 times lower—but those amounts still guide important physical and metabolic functions (Cleveland Clinic, n.d.; Davis & Wahlin-Jacobsen, 2015). For much of adult life, a woman’s circulating testosterone is higher than her circulating estradiol (Davis & Wahlin-Jacobsen, 2015).

Testosterone works in two ways:

• Directly, on androgen receptors in muscle, bone, brain, fat, skin, and sexual tissues
• Indirectly, when local enzymes turn it into estradiol or into the stronger androgen dihydrotestosterone (DHT)

These pathways help explain effects on sexual function, tissue upkeep, and metabolism even when blood levels look low (Davis & Wahlin-Jacobsen, 2015; Labrie et al., 2017).

Where women’s androgens come from

Women do not rely on one gland. Production is shared.

• The ovaries release some testosterone and larger amounts of precursors
• The adrenal glands release DHEA and DHEA-sulfate (DHEAS), a large precursor pool
• Peripheral tissues—fat, skin, muscle, and other organs—convert those precursors into the small amounts of hormone they need

This last step is called intracrinology. Many tissues make the hormone they need on site and then break it down before much of it returns to the blood (Labrie et al., 2017). A blood testosterone result is only the visible tip of a larger local system.

Enzymes in tissues can convert DHEA to testosterone, make DHT, or turn testosterone into estradiol. The same precursor can become an androgen in one tissue and an estrogen in another. Local enzymes, not just the lab, decide the outcome (Labrie et al., 2017; Schiffer et al., 2018).

A long slope, not a sudden cliff

Estradiol falls sharply at menopause. Androgens do not. DHEA and DHEAS begin to fall from about the third decade of life and may be down by roughly 60% by menopause (Davis & Wahlin-Jacobsen, 2015). A woman in her forties is already below her own earlier peak.

Midlife data measured by mass spectrometry found median testosterone falling from about 0.56 nmol/L in the early forties to about 0.42 nmol/L in the late fifties, with a low point near ages 58–59. In women of similar age, testosterone did not differ by menopausal stage. Natural menopause itself is not a stand-alone reason to administer testosterone (Wang et al., 2025).

Two exceptions matter:

• Surgical menopause (both ovaries removed) cuts the ovarian share at once
• Premature ovarian insufficiency creates an earlier deficit than the usual age-related slope (Davison et al., 2005; Soman et al., 2019)

The postmenopausal ovary can also continue to produce some testosterone for years after estradiol output has collapsed (Davis & Wahlin-Jacobsen, 2015).

Why one lab number rarely settles the question

Measuring female testosterone is challenging. Routine immunoassays were built for the much higher male range. Liquid chromatography–tandem mass spectrometry (LC-MS/MS) is more reliable. Most circulating testosterone is bound to sex hormone-binding globulin (SHBG), so free hormone can change when SHBG changes even if total testosterone stays the same (Rosner & Vesper, 2010).

What moves SHBG—and the free fraction:

• Oral estrogen and high thyroid hormone tend to raise SHBG and lower free testosterone
• Obesity and insulin resistance tend to lower SHBG and raise free testosterone
• Androgen excess, including polycystic ovary syndrome (also discussed as polyendocrine metabolic ovarian syndrome, or PMOS), also lowers SHBG (Luo et al., 2024; Teede et al., 2023)

Low SHBG is also a metabolic clue and has been linked to higher diabetes risk in women (Ding et al., 2009). Guidelines do not diagnose androgen deficiency based on a single value. A level is a baseline and a safety check, not the whole diagnosis (Davis et al., 2019; Parish et al., 2021).

What the evidence supports—and what it does not

The clearest evidence is in sexual function. Higher endogenous testosterone tracks modestly with better desire (Maseroli & Vignozzi, 2022). In randomized trials, testosterone improved desire, arousal, orgasm, pleasure, and satisfaction and reduced sexual distress in postmenopausal women with low desire (Islam et al., 2019).

Androgen receptors sit in bone, muscle, fat, vessels, and the brain. That map is real. This is not the same as a proven benefit. Trials supporting sexual-function gains have not firmly shown better body composition, bone, mood, or cognition to the same standard (Davis, 2025; Islam et al., 2019). Some tissue effects may also come from local conversion to estradiol.

Too much androgen is the other problem: acne, unwanted hair, cycle changes, and higher cardiometabolic risk in PMOS/PCOS (Teede et al., 2023). Risk can appear at both ends of the female range (Luo et al., 2024). The target is a physiologic band, not “more is better.”

International groups have not endorsed a broad “female androgen deficiency syndrome,” because no blood cutoff cleanly separates symptomatic women from normal variation (Davis et al., 2019; Wierman et al., 2014). The one consensus indication is hypoactive sexual desire disorder (HSDD) in postmenopausal women—low desire that causes distress—after other causes are addressed (Parish et al., 2021). There is still no FDA-approved testosterone product for women in the United States. Prescribing remains off-label, and long-term heart and breast data in women are limited (Islam et al., 2019; Panay et al., 2024).

What subcutaneous testosterone injections are

A subcutaneous (SubQ) injection places testosterone into the fatty layer under the skin, usually in the abdomen or thigh, with a short, thin needle. An intramuscular (IM) injection goes deeper into muscle.

In men and in some gender-affirming care settings, weekly SubQ testosterone esters can reach therapeutic levels with smaller peaks and troughs, less pain, and easier self-use than some IM schedules (Figueiredo et al., 2022). That data should not be copied wholesale onto women.

• Women need much smaller doses
• Female physiologic ranges are far lower
• Randomized evidence in women is mainly transdermal, not SubQ (Davis et al., 2019)
• Guidelines do not establish a subcutaneous route for women and do not endorse compounded products as first-line (Parish et al., 2021)

If a clinician considers low-dose SubQ testosterone cypionate in oil, it is an individualized, off-label choice. The goal is to keep exposure within the premenopausal physiologic range, monitor for acne, hair changes, voice changes, or metabolic shifts, and document informed consent (Davis et al., 2019; Jimenez, 2026b). If this route is used at all, start low, titrate to symptoms plus labs, use the same assay method over time, and do not treat menopause itself as an automatic indication (Wang et al., 2025). Compounded prefilled low-dose syringes are not FDA-approved for women. They are a delivery tool, not proof that therapy is indicated.

What patients gain from integrative chiropractic care

Hormone questions and musculoskeletal problems often show up together. Women with midlife androgen decline may also notice joint stiffness, slower recovery, fatigue, and poorer sleep (Davis, 2025; Jimenez, 2026a). After an auto accident or work injury, neck pain, low-back pain, and delayed stiffness can stack on top of that picture.

Integrative chiropractic care does not replace a hormone plan. It focuses on what the patient can gain:

• Pain relief through restored joint motion and less mechanical strain
• Improved mobility so walking, lifting, work, driving, and home tasks feel more possible
• Better sleep when night pain, muscle tightness, and poor recovery ease
• Stronger return to activity after crashes, work strain, or chronic back and neck pain

Chiropractic adjustments, soft-tissue care, and rehabilitation are non-invasive and drug-free. Used well, they can lower the chance that pain is managed only with long-term medication or rushed toward surgery. That is a simple safety idea: first do no harm, then add only what the person needs.

Integrative care also means working with the patient’s existing medical team. Supervising clinicians handle hormone dosing, lab review, and medication decisions. Chiropractic care adds movement, recovery, and function so the whole plan stays coordinated rather than split into separate silos.

How the El Paso team works together

At Injury Medical Clinic PA in El Paso, Texas, Dr. Alexander Jimenez, DC, APRN, FNP-BC, CFMP, IFMCP, ATN, CCST, provides chiropractic care, functional-medicine framing, and dual-licensed nurse-practitioner evaluation. In clinical observation, he describes testosterone as one part of a wider plan, not a stand-alone energy shot. He notes that women have androgen receptors across muscle, bone, and brain; that levels often fall by the mid-forties compared with the mid-twenties; and that low-dose, monitored strategies may support libido, energy, and musculoskeletal integrity in selected patients when labs, symptoms, and safety checks line up (Jimenez, 2026a, 2026c). He also stresses that SubQ use in women is not the same as male testosterone replacement and should not be sold as routine wellness care (Jimenez, 2026b). More clinical notes appear on dralexjimenez.com and LinkedIn.

Off-label hormone decisions need medical oversight. Dr. Maria Guadalupe Cardenas, MD, board-certified in internal medicine (NPI #1164426749, Texas MD License #J2933), has more than 40 years of experience as an internist. She serves as Medical Director and Collaborative Physician at Injury Medical Clinic PA. This multidisciplinary setup is common in integrative and injury clinics: an MD provides medical direction while a chiropractor delivers hands-on spinal and rehabilitation care.

Together, the team can connect:

• Medical screening and comorbidity review
• Chiropractic care for pain, mobility, and sleep-related musculoskeletal strain
• Functional medicine review of sleep, gut, thyroid, iron, and metabolic drivers that also change SHBG
• Personal injury care and rehabilitation after crashes, work injuries, or delayed symptoms
• Clear communication with the patient’s other physicians so care stays safe and well coordinated

Putting the pieces together

A careful visit starts with the story—desire, distress, energy, sleep, pain, injuries, medicines, and surgery—then an exam and labs used as a baseline, not a verdict. Other causes come first: relationship strain, depression, pain, vaginal dryness, thyroid disease, and medication effects. For many women, that means no testosterone. For some postmenopausal women with HSDD, a carefully dosed, monitored plan may be discussed. If SubQ is chosen, it stays small, measured, and reversible while chiropractic care rebuilds the capacity to move and recover.

Testosterone is a normal female hormone made in more than one place and used inside many tissues. It declines on a long slope. Blood tests tell only part of the story. The honest evidence base is strongest for distressed low sexual desire after menopause, not for menopause itself. Subcutaneous injections can offer steady delivery in other groups, but in women they remain an individualized, off-label option that must stay within a physiologic range.

The safest frame is coordinated care: medical direction for hormone decisions, chiropractic and rehabilitation for pain relief, mobility, and sleep, and a plan that prefers non-invasive options when they can help a person function without adding avoidable risk.

“Your body works as a unified system—your hormones directly dictate how well your spinal muscles heal and protect your joints. You don’t have to navigate chronic discomfort or confusing hormonal shifts alone; reach out to our team today to learn how safe, monitored subcutaneous protocols can be seamlessly coordinated with your physical care to help you live without limits.”

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