Testosterone replacement therapy (TRT) can trigger or worsen acne by increasing oil production in the skin. It is a manageable side effect, and most people can treat it without stopping prescribed testosterone. Acne may be mild and short-lived or become inflamed, painful, and scarring. A plan that starts early can protect the skin while keeping hormone treatment on track.
Medical information disclaimer: This article is for general educational purposes only and does not provide medical advice, diagnosis, or treatment. Always consult a physician or other qualified health professional about symptoms, medications, tests, or treatment decisions.
Table of Contents
- Why TRT can cause breakouts
- Who gets TRT acne and where it appears
- What patients can do first
- Do not change testosterone on your own
- What families should know
Why TRT can cause breakouts
Testosterone can stimulate sebaceous glands, the skin's oil-producing glands. Extra oil mixes with dead skin cells and blocks hair follicles, creating blackheads, whiteheads, and inflamed pimples.
When blocked follicles become more inflamed, acne can progress to deeper nodules or cysts. The Endocrine Society lists acne and oily skin among testosterone therapy's associated adverse effects in its clinical guideline.
Who gets TRT acne and where it appears
TRT acne is not inevitable. Some people notice only oilier skin, while others develop new acne or see existing acne become more persistent. In gender-affirming testosterone care, acne may begin within months of treatment, often during the first two years.
The American Academy of Dermatology notes that it commonly affects the lower face, chest, upper arms, and back in its guidance on testosterone-related acne. A medical-record study of 988 adults beginning masculinizing testosterone found that 25.1% received an acne diagnosis within two years, with the highest rate during the first six months. That figure may undercount milder breakouts that never reached a diagnosis.
What patients can do first
Keep the routine simple and consistent. Scrubbing, frequent product changes, and picking can make irritated skin harder to manage.
The American Academy of Dermatology's updated acne treatment guidance supports benzoyl peroxide and topical retinoids. Clinicians generally pair oral antibiotics with benzoyl peroxide and limit their duration; severe or treatment-resistant acne may call for an isotretinoin evaluation.
- Wash gently and avoid harsh exfoliation.
- Consider over-the-counter benzoyl peroxide or a topical retinoid.
- Use non-comedogenic, or pore-clogging-resistant, moisturizer and sunscreen.
- Contact a clinician promptly for painful deep bumps, spreading chest or back acne, scars, or emotional distress.
Do not change testosterone on your own
Do not lower, skip, or stop prescribed testosterone solely because acne appears. A dose reduction may not clear acne, and an unsupervised change can interfere with the goals of hormone treatment.
Instead, tell the clinician who prescribes testosterone and ask for an acne plan. The Endocrine Society recommends reassessment after treatment starts for response, adverse effects, and adherence, so acne can be addressed alongside the hormone regimen.
What families should know
Families can help by treating acne as a health issue, not a hygiene failure or a reason to shame someone about treatment. Offer practical support, such as helping schedule a dermatology visit or keeping a routine easy to follow.
Testosterone gel also requires care around others. The NHS advises users to wash their hands and cover the application area because regular contact can cause side effects in other people, as described in its hormone therapy safety information.