Male Infertility: Common Causes & When to See a Doctor (Pakistan 2026)
Male factors contribute to roughly half of couples' fertility struggles. Learn the real causes, from varicocele to hormones and lifestyle, how it is diagnosed, and when to see a doctor.
Did you know? Doctors generally consider male factors to contribute roughly the same share of couples' fertility struggles as female factors, per general medical consensus. Understanding the real male infertility causes is often the first step towards feeling less stuck and more in control.
This guide covers male infertility symptoms, common low sperm count causes, how doctors diagnose the problem, and when to see a doctor. It also looks at male infertility treatment in Pakistan, including where supplements help and where they cannot.
What does male infertility actually mean?
Doctors usually define infertility as not conceiving after 12 months of regular, unprotected intercourse. Male infertility means a problem with the man's sperm, hormones, or reproductive anatomy is contributing.
It rarely announces itself with obvious symptoms. Most men feel completely normal. That is why understanding the underlying causes matters. The NHS notes that infertility affects both partners in roughly equal measure, a helpful reminder that this is a shared medical issue, not a personal failing.
Common male infertility symptoms to notice
Many men have no symptoms at all. Fertility problems are often only found through testing. Still, some signs are worth noting.
- Difficulty conceiving. The most common way male infertility is discovered.
- Changes in sexual function. Low libido or erectile difficulty can point to a hormonal cause.
- Testicular pain, swelling, or a lump. Needs prompt medical attention regardless of fertility plans.
- Reduced facial or body hair, or breast tissue changes. Can suggest a hormone imbalance.
- A history of undescended testicle or groin surgery. Raises the chance of a fertility issue later.
Sperm production problems
Most male infertility cases come down to a problem making healthy sperm. Doctors look at three things together: count, motility, and morphology.
Low count, poor motility, or abnormal shape
A low count is oligospermia. Poor movement is low motility. An unusual shape is abnormal morphology. Any one, or a combination, can lower the chance of natural conception.
Hormonal imbalance
Sperm production depends on a chain of hormones from the brain to the testes. Low testosterone, high prolactin, or a thyroid problem can disrupt this chain. A simple blood test usually finds these issues.
Varicocele
A varicocele is an enlarged vein in the scrotum, similar to a varicose vein in the leg. It is one of the most common and most treatable causes of male infertility. It raises the temperature around the testes, harming sperm production over time. Many men notice no symptoms until a doctor examines them.
Undescended testicle history and genetic factors
If one or both testicles did not descend before birth or in early childhood, this can affect sperm production later, even after corrective surgery. Mention this history to your doctor. Separately, some men carry chromosomal differences, such as Klinefelter syndrome, that reduce or stop sperm production. Genetic testing is usually only offered after a semen analysis shows a very low or zero count.
Sperm delivery and blockage issues
Sometimes sperm production is normal, but sperm cannot travel through the reproductive tract. This is an obstructive cause. Low semen volume is often the clue that leads to further testing.
- Infections. Past sexually transmitted or urinary infections can scar and block the tubes that carry sperm.
- Prior surgery. Hernia repair or other groin and pelvic surgery can sometimes affect these tubes.
- Structural issues. Some men are born without part of the tube that carries sperm, often linked to a genetic condition.
Lifestyle and environmental factors
Unlike the causes above, these factors are largely modifiable within the roughly 74 days sperm take to mature.
Heat exposure
The testes work best slightly cooler than body temperature. Frequent saunas, a laptop resting directly on the lap, and tight underwear can raise scrotal temperature. This is one of the easiest factors to fix.
Smoking, alcohol, and obesity
Smoking is strongly linked to lower sperm count and more DNA damage. Quitting is one of the highest impact changes a man can make. Regular heavy drinking can lower testosterone, though moderate drinking has a much smaller effect. Excess body fat also disrupts the hormone balance sperm production needs, so reaching a healthier weight often helps.
Certain medications and chronic stress
Some blood pressure medicines, anabolic steroids, and long-term opioid use can lower sperm count. Never stop a prescribed medication without asking the prescribing doctor first. Separately, ongoing stress raises cortisol, which competes with testosterone, and poor sleep compounds the effect.
Medical conditions linked to male infertility
Several long-term conditions affect fertility indirectly. Treating them well, alongside fertility care, often improves the outlook.
- Diabetes. Poorly controlled blood sugar can affect sperm DNA and, in some men, sexual function.
- Thyroid disorders. An underactive or overactive thyroid can disrupt the hormones sperm production depends on.
Unexplained male infertility
In a meaningful number of cases, doctors cannot find a clear cause even after full testing. This is frustrating, but it does not mean nothing can be done. Many couples still go on to conceive naturally or with assisted treatment.
How is male infertility diagnosed?
Diagnosis follows a clear path.
- Semen analysis. Almost always the first step, checking count, motility, morphology, and volume. Costs roughly PKR 2,000 to 4,000 at major Pakistani labs.
- Hormone blood tests. Check testosterone, LH, FSH, prolactin, and thyroid hormones if the semen analysis is abnormal.
- Physical examination. A doctor checks for a varicocele, testicular size, and structural issues.
- Imaging. A scrotal ultrasound is sometimes used for a closer look at a varicocele or blockage.
- Genetic testing. Reserved for a very low or zero sperm count, once other causes are ruled out.
The Mayo Clinic has a clear overview of this diagnostic path.
When should you see a doctor?
See a urologist or andrologist if:
- You have been trying to conceive for 12 months or more without success.
- You have been trying for 6 months and your female partner is over 35.
- You have a known risk factor, such as a history of undescended testicle or prior groin or hernia surgery.
- You notice testicular pain, swelling, or a lump.
- You have a diagnosed varicocele or a chronic condition like diabetes or a thyroid disorder.
Both partners should ideally be tested together. This halves the time spent chasing the wrong cause.
The honest news: many causes are treatable or manageable
A male infertility diagnosis is not a hopeless one. Varicocele can often be corrected surgically, sometimes with a marked improvement. Hormonal imbalances can often be managed with medication. Lifestyle factors like heat, smoking, alcohol, and weight are within a man's control. Even blockages can sometimes be treated with assisted reproductive techniques.
Once you understand your cause, many men move on to tightening up diet, sleep, and daily habits. Our guide on how to increase sperm count naturally in Pakistan covers the foods, supplements, and habits that help once causes are checked. For couples earlier in the process, our guide to trying to conceive in Pakistan covers timing basics. For a broader look across both partners and IVF, see our guide to infertility causes and IVF in Pakistan.
Where supplements fit in
Nutrient gaps are common in Pakistan, and diet quality genuinely affects sperm production. A targeted supplement like Repro-M Men's Fertility Supplement can offer supportive, general nutrient-related fertility support alongside a good diet and healthy habits.
Be honest about the limits here. Repro-M is not a treatment for structural or medical causes such as varicocele, a genetic condition, or a hormonal disorder. Those need proper medical or surgical management, not a supplement.
If tests come back normal, Repro-M can still be a sensible, low risk addition. If tests show a medical cause, treat that first, then use supportive nutrition alongside it.
This article was written and medically reviewed to our medical review board standards and is for general guidance, not personal medical advice. Always speak to a doctor or pharmacist about your own situation.
Frequently asked questions
Can male infertility be reversed?
Often, yes, at least partly. Lifestyle related causes can improve within a few months. Varicocele can often be corrected surgically, and hormonal imbalances treated with medication. Some causes, like certain genetic conditions, cannot be reversed, but assisted reproductive techniques can still help.
Does age affect male fertility?
Yes, though more gradually than female fertility. Sperm quality and motility tend to decline slowly with age, usually more noticeable from the mid-forties onward. Lifestyle factors often matter more day to day than age alone.
Do supplements alone fix low sperm count?
Not on their own. Supplements can support nutrient gaps and general sperm health, but they cannot correct a varicocele, a blockage, or a significant hormonal or genetic disorder. See a doctor first if a semen analysis shows a clear problem.
Should both partners get tested together?
Yes, generally. Since male and female factors contribute roughly equally to couples' fertility struggles, testing both partners together avoids wasted months and gives the clearest picture.
What is the first test a man should get?
A semen analysis. It is affordable, widely available across Pakistan, and tells the doctor what to test next.
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