Unlike many health problems, male infertility often develops quietly. The signs are subtle, easy to miss, or mistaken for stress or aging.

In this article, we break down the top five signs of male infertility, what they may mean, and when to consider testing.

Infographic showing top 5 signs of male infertility

1. Low Sex Drive or Erectile Changes

A drop in sexual desire or difficulty maintaining erections can signal low testosterone levels or hormonal imbalance, both of which affect sperm production. While occasional changes can stem from stress or fatigue, persistent problems may indicate underlying male infertility signs tied to hormone or blood-flow issues.

If you notice a consistent difference in libido, stamina, or morning erections, we encourage you to schedule a consultation with our fertility specialists. Early testing can reveal whether hormones or lifestyle factors are playing a role.

2. Pain or Swelling in the Testicles

A dull ache, heaviness, or visible veins in the scrotum may point to a varicocele – a cluster of enlarged veins that raises testicular temperature and interferes with sperm development. It is one of the most common and treatable causes of male infertility.

Ignoring this discomfort can allow damage to worsen over time. A physical exam or scrotal ultrasound can confirm whether a varicocele is present and if treatment could improve fertility.

3. Changes in Ejaculation or Semen Volume

Noticeable differences in semen volume, texture, or force of ejaculation can suggest issues with the prostate, seminal vesicles, or sperm ducts – conditions that may lead to low sperm count or poor sperm motility. Some men experience “dry” ejaculation (little or no semen) from retrograde flow into the bladder.

A simple male fertility test – the semen analysis – can clarify what is happening. It measures sperm count, movement, and shape, giving a clear view of fertility potential.

4. Loss of Body Hair or Muscle Mass

Thinning facial or body hair, decreased muscle tone, and persistent fatigue often accompany low testosterone or other hormonal disruptions. Because testosterone drives sperm production, these changes can overlap with declining sperm quality and male infertility symptoms.

At New Hope Fertility Center, our fertility doctors use advanced male fertility testing methods – including semen analysis and hormone evaluation – to uncover the root cause and create a plan tailored to each patient.

5. Unexplained Weight Gain or Fatigue

Carrying extra weight or feeling constantly tired can influence reproductive health more than many realize. Obesity, poor sleep, and chronic stress can all disturb hormone balance, raise testicular temperature, and reduce sperm count.

Improving nutrition, exercise, and sleep habits can meaningfully enhance fertility outcomes within a few months.

When to Get Tested

If you have been trying to conceive for six to twelve months without success – or recognize any of these early signs of male infertility – schedule a male fertility evaluation with one of our fertility specialists.

A semen analysis is quick, private, and provides crucial data on sperm count, motility, and morphology. Even when results are abnormal, most causes are treatable through lifestyle changes or medical intervention.

FAQs: Symptoms of Male Infertility

Common male infertility symptoms include reduced sex drive, erectile changes, testicular pain, changes in semen volume, and unexplained fatigue or weight gain.

Yes. Many men have normal sexual function but an abnormal semen analysis. That is why testing is the only reliable way to confirm fertility status.

If conception has not occurred after six to twelve months – or you notice any signs of infertility in males – book a male fertility test to understand sperm health and next steps.

Why New Hope?

Many men feel uneasy discussing fertility issues, but you are not alone. With the right testing and guidance, most causes of male infertility can be identified and treated successfully.

Paying attention to male infertility signs – including subtle physical or hormonal changes – can help you act sooner and improve fertility outcomes, shortening the path to conception.

Ready to learn more? Call us at (347) 970-8479 or schedule your initial consultation now.

New Hope Editorial Team

Written by the New Hope Editorial Team

As experts in IVF and Assisted Reproductive Technologies, we are committed to educating and empowering people on their fertility journey with accurate information and compassionate care.