You went for a checkup — maybe because you were having trouble conceiving, maybe because of a dull ache in your scrotum, or maybe the doctor found it incidentally during a physical exam. And now you’ve been told you have a varicocele.

Your first instinct was probably to Google it. And what you found was either terrifyingly vague or full of surgical ads. So here’s what a varicocele is, when it matters, and when (and whether) you need to do something about it.

What a varicocele is

A varicocele is an enlargement of the veins within the scrotum — the pampiniform venous plexus, specifically. Think of it like varicose veins in your legs, but in your scrotum. The veins that are supposed to carry blood away from the testes become dilated and tortuous, causing blood to pool instead of flowing efficiently.

They occur almost exclusively on the left side (about 85-90% of cases), though bilateral varicoceles happen too. The anatomy explains why: the left testicular vein drains into the left renal vein at a right angle, creating more resistance to blood flow. The right testicular vein drains directly into the inferior vena cava at a more favorable angle. This asymmetry makes the left side more vulnerable to venous congestion.

Varicoceles typically develop during puberty and are found in about 15% of all adult men. Most men with varicoceles have no symptoms and no fertility issues. They live their entire lives not knowing they have one.

But here’s the number that matters: varicoceles are found in approximately 35-40% of men with primary infertility (first time trying to conceive) and up to 80% of men with secondary infertility (had a child before but can’t conceive again). That’s a significant overrepresentation, and it’s why varicoceles are the most common surgically correctable cause of male infertility.

How varicoceles affect fertility

The exact mechanism isn’t fully settled, but the most supported theory centres on heat.

Your testes hang outside your body for a reason: sperm production (spermatogenesis) requires a temperature 2-4 degrees Celsius below core body temperature. The scrotal position and the countercurrent heat exchange system of the pampiniform plexus are designed to keep the testes cool.

When those veins are dilated and congested, warm blood pools around the testes instead of being efficiently cooled. The result is elevated scrotal temperature — sometimes by only 1-2 degrees, but that’s enough to impair sperm production.

The consequences show up on semen analysis:

  • Reduced sperm count (oligozoospermia)
  • Decreased motility (asthenozoospermia)
  • Abnormal morphology (teratozoospermia)
  • Increased sperm DNA fragmentation (damaged genetic material)

Not every varicocele causes these problems. The severity of the varicocele, individual physiology, and other factors all play a role. Many men with varicoceles have perfectly normal semen parameters.

Other proposed mechanisms include oxidative stress from blood pooling, backflow of adrenal and renal metabolites into the testicular veins, and disruption of the hormonal microenvironment of the testes. These are areas of ongoing research.

Grading: how varicoceles are classified

Varicoceles are graded based on physical examination:

Grade I (small): Detectable only with a Valsalva manoeuvre — the doctor asks you to bear down or cough while they examine your scrotum. The enlarged veins become palpable only with increased abdominal pressure. Not visible.

Grade II (moderate): Palpable without Valsalva — the doctor can feel the enlarged veins just by examining you normally. Not visible.

Grade III (large): Visible through the scrotal skin without touching. Often described as a “bag of worms” appearance. You might be able to see or feel it yourself.

Subclinical varicocele: Not detectable on physical exam but found on ultrasound. The clinical significance of subclinical varicoceles is debated — most evidence suggests they don’t affect fertility meaningfully, and surgical repair of subclinical varicoceles doesn’t improve outcomes.

An ultrasound with Doppler is often done to confirm the diagnosis and measure vein diameter. Veins larger than 3mm with demonstrable reflux (backward blood flow) during Valsalva confirm the diagnosis.

When does a varicocele need treatment?

This is the crucial question, and the answer isn’t “always.” Many men with varicoceles don’t need surgery. Treatment is generally recommended when all three of the following criteria are met:

  1. The varicocele is palpable (Grade II or III — there’s limited evidence for treating Grade I or subclinical varicoceles)
  2. Semen analysis is abnormal (at least one parameter below WHO reference values)
  3. The couple has documented infertility (trying for 12+ months without conception, or the man wants to preserve future fertility)

Additional situations where treatment may be considered:

  • Adolescents with testicular growth discrepancy — if the testis on the varicocele side is significantly smaller (more than 20% volume difference), repair may prevent progressive damage during development
  • Symptomatic varicoceles — persistent testicular pain or discomfort that hasn’t responded to conservative measures (supportive underwear, anti-inflammatories)
  • Low testosterone with varicocele — some evidence suggests varicocelectomy can improve testosterone levels, though this is still being studied

Treatment is generally NOT recommended when:

  • The varicocele is subclinical (found only on ultrasound)
  • Semen analysis is normal
  • The female partner has a significant infertility factor that will require IVF/ICSI regardless
  • The couple has already completed their family

Surgical options in India

If surgery is recommended, here are the approaches available:

Microsurgical varicocelectomy (subinguinal or inguinal)

The gold standard. An incision is made in the groin area, and the surgeon uses an operating microscope to identify and ligate (tie off) the dilated veins while carefully preserving the testicular artery, lymphatic vessels, and vas deferens.

Why microsurgical is preferred: The microscope allows the surgeon to distinguish arteries from veins — something that’s very difficult with the naked eye. This dramatically reduces complications:

  • Recurrence rate: 1-2% (compared to 10-15% with non-microsurgical approaches)
  • Hydrocele rate: less than 1% (compared to 7-10%)
  • Testicular artery damage: extremely rare

Cost in India: Rs 30,000-80,000 depending on the city, hospital, and surgeon. In government hospitals, it can be significantly cheaper. In premium private hospitals in metros, it might reach Rs 1-1.5 lakh.

Recovery: Most men go home the same day or the next morning. Avoid heavy lifting and strenuous exercise for 2-3 weeks. Most men return to desk work within a week. Full recovery takes 4-6 weeks.

Laparoscopic varicocelectomy

The veins are ligated through small keyhole incisions using a camera and instruments inserted into the abdomen. It works, but has higher recurrence rates than microsurgical (5-15%) and slightly higher risk of complications because it operates higher up in the venous system.

Cost in India: Rs 40,000-90,000.

Some surgeons prefer this approach for bilateral varicoceles because both sides can be addressed through the same ports.

Open (non-microsurgical) varicocelectomy

The traditional approach — same incision as microsurgical but without the operating microscope. Largely being replaced by microsurgical technique due to higher recurrence and complication rates. Still performed in some centres that don’t have microsurgical equipment or expertise.

Cost in India: Rs 20,000-50,000.

Percutaneous embolization

A non-surgical alternative performed by an interventional radiologist. A catheter is threaded through a vein in the neck or groin to the testicular vein, and the vein is blocked using coils or sclerosing agents.

Advantages: No incision, faster recovery (1-2 days), can be done under local anaesthesia. Disadvantages: Higher recurrence rate (10-15%), requires specialized interventional radiology expertise, not available everywhere in India.

Cost in India: Rs 30,000-70,000.

Which one should you choose?

If your surgeon is experienced in microsurgical varicocelectomy, that’s the best option. The lowest recurrence rate, the fewest complications, and the best evidence for improving semen parameters.

If microsurgical isn’t available in your area, laparoscopic is a reasonable alternative. Embolization is a good option if you want to avoid surgery entirely, but accept the higher recurrence risk.

Ask your surgeon:

  • How many varicocelectomies they perform per year (you want someone who does this regularly)
  • What approach they use and why
  • Their personal recurrence rates
  • Whether they use a microsurgical technique with an operating microscope or loupes

Results: what to expect after surgery

Let’s set realistic expectations.

Semen parameter improvement: 60-70% of men see improvement in at least one semen parameter (count, motility, or morphology) after varicocelectomy. Improvement typically starts showing at 3-6 months and can continue up to 12 months, given the 74-day sperm production cycle.

Natural conception rates: After varicocelectomy, natural pregnancy rates are approximately 30-50% over 1-2 years, compared to 15-20% without treatment. This is a meaningful improvement, but it’s not a guarantee.

Testosterone improvement: Several studies have shown a modest increase in testosterone levels (average 50-100 ng/dL increase) after varicocelectomy, though this isn’t the primary indication for surgery.

When results are best: Younger men, higher-grade varicoceles (Grade II-III), preoperative total motile sperm count above 5 million, and absence of other fertility factors (female partner factors, genetic causes) predict the best outcomes.

When results are limited: Men with very severe pre-existing damage (extremely low counts, non-obstructive azoospermia), bilateral varicoceles with significant testicular atrophy, or advanced partner age may have more limited improvement.

Varicocelectomy vs. ART decision: If the female partner is over 35, many reproductive endocrinologists recommend proceeding directly to IUI/IVF rather than waiting 6-12 months post-surgery. Time is a factor — discuss this with your fertility specialist.

Varicocele and pain

Not all varicoceles cause pain, but some do. The typical varicocele pain is:

  • A dull, aching discomfort in the scrotum
  • Worse after standing for long periods or physical exertion
  • Worse in hot weather
  • Better when lying down
  • Often described as a “heaviness” or “dragging” sensation

If your varicocele is causing significant pain, treatment is reasonable even without fertility concerns. Conservative measures first — supportive underwear (briefs instead of boxers), over-the-counter anti-inflammatories, and avoiding prolonged standing. If pain persists, surgery is an option.

Living with a varicocele

If your varicocele doesn’t meet the criteria for treatment — small grade, normal semen, no symptoms — there’s no urgency. But keep these things in mind:

  • Monitor semen parameters periodically if you plan to have children in the future. Varicoceles can cause progressive damage over time.
  • Get checked if things change. New pain, worsening of semen parameters, or difficulty conceiving down the line — these warrant re-evaluation.
  • Basic heat management makes sense. Avoid laptops on your lap, skip the hot tubs, wear supportive but not constrictive underwear. These help even without surgery.

If you’re navigating a broader infertility workup, our guide to male infertility in India covers the full picture, and the semen analysis guide can help you understand your test results.

When to see a doctor

See a urologist if:

  • You’ve been diagnosed with a varicocele and have abnormal semen parameters or are having trouble conceiving
  • You have a palpable mass or swelling in your scrotum that you haven’t had evaluated
  • You’re experiencing persistent testicular pain or discomfort
  • You’re an adolescent or young man with a noticeable size difference between your testes
  • You have a varicocele and want to preserve future fertility (proactive evaluation before trying to conceive)

For surgery specifically, seek a urologist who performs microsurgical varicocelectomy regularly. In India, major centres with experienced microsurgeons include urology departments at AIIMS, Safdarjung Hospital, KEM Mumbai, CMC Vellore, PGIMER Chandigarh, and private fertility centres in most metro cities.

A varicocele isn’t a death sentence for your fertility. For many men, it’s a fixable problem with a well-understood solution. But it requires proper evaluation, realistic expectations, and the right surgeon. Don’t ignore it, and don’t panic about it. Get assessed, understand your options, and make an informed decision.