The male partner, at every step
For partners
Male factors play a part in about half of couples’ infertility. What he does in the next three months matters.
Male factors contribute to infertility in about half of couples, and sperm take about two and a half months to develop, so changes made now show up in roughly three months. Avoid smoking, heat and testosterone therapy, get a semen analysis if it is taking a while, and be wary of supplement claims.
Sperm health
The 90-Day Sperm Health Plan
A 12-week sperm health plan built on the 74-day sperm cycle: when to test, what to stop, heat, weight, alcohol, honest supplement evidence and when to retest.
How to Increase Sperm Count: Evidence-Based Steps
How to increase sperm count with evidence: WHO 2021 reference values, smoking, alcohol, weight, heat, testosterone, varicocele and when to see a urologist.
TRT and Fertility: Why Testosterone Lowers Sperm Count
TRT and fertility: why testosterone therapy suppresses sperm production, how long recovery takes after stopping, what guidelines say and the options to discuss.
Why it matters
The AUA/ASRM guideline on male infertility says infertility is due in whole or in part to the male in about half of infertile couples, and that both partners should be evaluated in parallel.1 Because sperm take roughly 64 to 74 days to develop,2 the habits of the next three months shape the sperm of month four.
Where to start
- The plan. The 90-day sperm health plan turns the evidence into weekly steps, and how to increase sperm count explains what moves the numbers.
- Testosterone. If you use or are considering TRT, read TRT and fertility and talk to a urologist first.
- Testing. A semen analysis is quick and inexpensive, and at-home kits are an option. Semen analysis results explains the numbers.
- Supplements. Most have limited evidence; zinc and selenium for sperm covers the best-studied ingredients.
This page is educational and is not medical advice. Talk to a clinician about your own situation, and seek urgent care for heavy bleeding, severe pain or fainting.
Sources
- 1Diagnosis and treatment of infertility in men: AUA/ASRM guideline. American Urological Association. 2024 amendment
- 2Spermatogenesis in man: an estimate of its duration. Science. Heller CG, Clermont Y, 1963