Men's Health
Testosterone Therapy and Fertility: What to Know Before Starting
October 8, 2026 Vitality Medicine RX Editorial Team
Testosterone therapy suppresses the signals that drive sperm production and can significantly reduce or stop sperm production while it is used. Men who may want children in the future should discuss fertility before starting, because options such as HCG can help preserve sperm production, though this use is off-label. Vitality Medicine RX offers nurse practitioner-led telehealth testosterone care in states where Dr. Miklos Major II, Sc.D., DNP, NP-BC, FAAMFM holds an active license.
How testosterone therapy affects sperm production
Exogenous testosterone suppresses luteinizing hormone (LH) and follicle-stimulating hormone (FSH), the signals the testes need to produce sperm. A large share of men using testosterone therapy develop no sperm in the ejaculate, and most of the rest have significantly reduced sperm counts. For this reason, testosterone therapy is not recommended for men actively trying to conceive.
Does fertility come back after stopping?
Sperm production usually recovers within about four months of stopping testosterone, and sometimes takes six months or longer. Recovery is common but not guaranteed for every man, which is why the conversation happens before starting, not after.
Options for men who want children
Human chorionic gonadotropin (HCG) acts like LH and can maintain intratesticular testosterone production, supporting continued sperm production while testosterone therapy continues. This use is off-label, requires a prescription and monitoring, and is not universally effective, so fertility plans should be discussed before treatment begins.
What to discuss before starting
- Whether you may want children in the future
- How long you plan to use testosterone therapy
- Fertility preservation options, including HCG, and their off-label status
- When a fertility evaluation or sperm banking might make sense
When to talk to a clinician
If you are considering testosterone therapy and fertility matters to you, book a discovery call. We will confirm we can see you in your state and review your options before any treatment begins.
Sources
- Understanding and managing the suppression of spermatogenesis caused by testosterone replacement therapy (Therapeutic Advances in Urology, via PubMed Central)
- Low-dose hCG prevents azoospermia and maintains fertility in hypogonadal men on testosterone replacement therapy (Fertility and Sterility)
- Concomitant intramuscular hCG preserves spermatogenesis during testosterone replacement therapy (Journal of Urology)
Related Pages
Talk to a Clinician
This article is educational and does not replace individualized medical advice. If you have questions about your own health, book a discovery call with Vitality Medicine RX. Your care is led by Dr. Miklos Major II, Sc.D., DNP, NP-BC, FAAMFM, a Doctor of Nursing Practice (DNP) and Doctor of Science (Sc.D.), board-certified nurse practitioner (NP-BC). Care is available in states where he holds an active license.
Book a Discovery CallQuestions About This Topic
Does testosterone therapy cause infertility?
Testosterone therapy suppresses sperm production in most men while it is used, and it is not recommended for men actively trying to conceive.
Can I preserve fertility while on testosterone therapy?
HCG used alongside testosterone may help maintain sperm production, but this use is off-label and not universally effective. Fertility plans should be discussed before starting.
How long after stopping testosterone does fertility return?
Sperm production usually recovers within about four months of stopping, sometimes longer, and recovery is not guaranteed for every man.
What should I do if I want children?
Discuss fertility with your clinician before starting testosterone therapy so preservation options can be planned in advance.
Last updated 2026-10-08.