For decades, fertility conversations have disproportionately focused on women. Yet modern reproductive medicine continues to reinforce a critical reality: male fertility plays an equally important role in conception.
During Men’s Health Month, this conversation deserves greater visibility, not only to reduce stigma surrounding male infertility, but also to encourage earlier evaluation and proactive reproductive care.
“Male fertility factors contribute to nearly half of infertility cases we see. Early evaluation gives couples clarity and allows us to create more personalized treatment strategies from the beginning.”
Dr. Minoos Hosseinzadeh
Male Fertility Is Part of the Fertility Conversation
Male infertility is far more common than many people realize.
What Determines Male Fertility?
- Sperm count
- Sperm motility
- Sperm morphology
- DNA fragmentation
- Hormone levels
- Overall semen analysis findings
Understanding Sperm Health Basics
Sperm Count
Sperm count refers to the concentration of sperm present in semen.
Sperm Motility
Sperm motility measures how effectively sperm move.
Sperm Morphology
Sperm morphology evaluates the structural appearance of sperm.
DNA Fragmentation
DNA fragmentation assesses genetic integrity within sperm cells.
“Advanced sperm testing helps us look beyond basic numbers. In some cases, DNA integrity becomes a very important part of understanding embryo development and IVF outcomes.”
Dr. Hosseinzadeh
Common Causes of Male Infertility
- Hormonal imbalances
- Varicocele
- Smoking and vaping
- Excessive alcohol use
- Recreational drug use
- Obesity and metabolic dysfunction
- Chronic stress
- Heat exposure
- Certain medications
- Testosterone therapy
- Male fertility age decline
- Genetic conditions
Lifestyle Factors That Affect Sperm Health
- Prioritizing restorative sleep
- Maintaining regular exercise
- Eating nutrient-dense foods rich in antioxidants
- Reducing processed foods
- Avoiding smoking and vaping
- Limiting alcohol consumption
- Managing chronic stress
- Minimizing excessive heat exposure from saunas or laptops
- Maintaining healthy testosterone levels naturally
Testosterone and Fertility: A Common Misunderstanding
Many men assume higher testosterone automatically means stronger fertility. In reality, exogenous testosterone can suppress sperm production significantly.
“Testosterone and fertility are often misunderstood. Men considering TRT should always discuss future family planning goals with a fertility specialist beforehand.”
Dr. Hosseinzadeh
Why Early Fertility Testing Matters
- Couples under 35 have tried for 12 months without success
- Couples over 35 have tried for 6 months
- There is a history of testosterone use
- There are known medical conditions affecting fertility
- There is prior reproductive difficulty
Male Fertility and IVF
Severe male factor infertility does not necessarily prevent parenthood. Modern reproductive technologies offer multiple pathways forward.
Precision IVF and Embryo Selection at FISD
Fertility Institute of San Diego is currently the only clinic in San Diego that includes AI-assisted EmbryoScope technology with Chloe AI as part of every IVF cycle.
Fertility Is Not a Reflection of Masculinity
Male infertility is a medical condition, not a reflection of masculinity, identity, or personal worth.
“Seeking answers early is a sign of responsibility and partnership. Fertility evaluation should feel normalized for men, just like any other aspect of healthcare.”
Dr. Hosseinzadeh
What Men Can Do Right Now
Male Fertility Checklist
- Schedule a semen analysis
- Review medications with a physician
- Stop smoking and vaping
- Improve nutrition and exercise habits
- Reduce alcohol consumption
- Manage stress levels
- Address sleep quality
- Avoid prolonged heat exposure
- Seek evaluation early if concerns arise
FAQ
How common is male infertility?
Male infertility contributes to approximately 40 to 50 percent of infertility cases among couples trying to conceive.
What affects sperm health the most?
Lifestyle factors affecting sperm health include smoking, alcohol use, obesity, stress, poor sleep, heat exposure, and hormonal imbalances.
When should men get fertility tested?
Men should consider fertility testing after 12 months of trying to conceive under age 35, or after 6 months if the female partner is over 35.
Can smoking affect sperm quality?
Yes. Smoking and sperm quality are closely linked. Smoking may negatively affect sperm count, sperm motility, morphology, and DNA integrity.
Does testosterone therapy reduce fertility?
Yes. Testosterone replacement therapy can suppress natural sperm production and affect fertility potential.
Can sperm health improve over time?
Yes. Since sperm regenerate approximately every 70 to 90 days, healthy lifestyle changes may improve sperm health over several months.
What is a semen analysis?
A semen analysis is a laboratory evaluation that examines sperm count, motility, morphology, and other fertility-related markers.
Men’s Health Includes Reproductive Health
Men’s Health Month serves as an important reminder that reproductive health is inseparable from overall health.
If you’re ready to start your fertility journey, please book a complimentary virtual consultation with Dr. Hosseinzadeh to discuss fertility options or any other reproductive healthcare questions.





