Varicocele

A varicocele is an abnormal enlargement of the veins within the spermatic cord, the structure responsible for carrying blood to and from the testicles. This condition is similar to varicose veins that develop in the legs and is one of the most common urological conditions affecting adolescent and adult men.

Although many men experience no symptoms, varicocele can reduce sperm production and quality, contribute to testicular shrinkage, and become one of the leading treatable causes of male infertility.

The good news is that, with early diagnosis and appropriate treatment, symptoms can often be relieved and reproductive function may improve.

What Is a Varicocele?
A varicocele develops when the valves inside the veins of the spermatic cord fail to function properly. As a result, blood does not circulate efficiently and begins to pool inside the veins, causing them to enlarge.

This condition most commonly affects the left side of the scrotum due to the anatomy of the venous system, although it can occur on both sides.

Most varicoceles develop gradually during puberty and remain stable throughout adulthood.

Symptoms of Varicocele
Many men discover they have a varicocele during a routine physical examination or while undergoing evaluation for infertility.

When symptoms occur, they may include:

• Dull or aching pain in one testicle.
• A feeling of heaviness in the scrotum.
• Pain that worsens after prolonged standing.
• Discomfort following physical activity or exercise.
• Swelling of the scrotum.
• Enlarged or twisted veins that may feel like a "bag of worms."
• One testicle appearing smaller than the other.
• Fertility problems or difficulty conceiving.

The discomfort often improves when lying down because pressure within the veins decreases.

What Causes Varicocele?
The exact cause is not fully understood. However, specialists believe it occurs when the valves inside the spermatic veins stop functioning properly.

As blood backs up within the veins, pressure increases, leading to vein enlargement.

Over time, this increase in temperature around the testicle may interfere with normal sperm production and reduce semen quality.

Risk Factors
Although no definitive risk factors have been identified, varicocele is more commonly diagnosed in:

• Adolescents and young men.
• Men between 15 and 25 years of age.
• Individuals being evaluated for infertility.
• Patients with noticeable differences in testicular size.

Most cases develop during puberty and progress slowly over time.

How Does Varicocele Affect Fertility?
Varicocele is considered one of the most common treatable causes of male infertility.

The pooling of blood around the testicle may increase its temperature, which can interfere with normal sperm production.

This may lead to:

• Reduced sperm count.
• Poor sperm motility.
• Abnormal sperm shape (morphology).
• Decreased overall semen quality.

Not every man with varicocele experiences infertility, but men having difficulty conceiving should undergo a comprehensive urological evaluation.

How Is Varicocele Diagnosed?
Diagnosis begins with a physical examination performed by a urology specialist.

During the examination, the physician may detect enlarged veins that often feel like a "bag of worms," particularly when the patient is standing or performing the Valsalva maneuver.

Additional tests may include:

• Scrotal Doppler ultrasound.
• Semen analysis for patients experiencing fertility concerns.
• Hormonal testing in selected cases.

A Doppler ultrasound is considered the gold standard imaging study because it allows the physician to evaluate blood flow and determine the severity of the condition.

Treatment for Varicocele
Not every patient requires treatment.

If the varicocele causes no symptoms and does not affect fertility, your urologist may simply recommend periodic monitoring.
Treatment is generally recommended when the condition causes:

• Persistent testicular pain.
• Male infertility.
• Abnormal semen analysis.
• Testicular shrinkage.
• Delayed testicular growth during adolescence.

The goal of treatment is to block the affected veins and redirect blood flow through healthy veins.

Types of Varicocele Repair

Microsurgical Varicocelectomy

Microsurgical varicocelectomy is considered the most effective surgical technique and offers the lowest recurrence rate.

The surgeon makes a small incision and uses a high-powered operating microscope to identify and seal the affected veins while preserving arteries and lymphatic vessels.

Benefits include:

• Faster recovery.
• Less postoperative pain.
• Lower risk of complications.
• Improved fertility outcomes.

Laparoscopic Varicocelectomy

This minimally invasive procedure involves making small abdominal incisions through which a camera and specialized surgical instruments are inserted to repair the affected veins.

It may be recommended in selected cases, particularly when varicoceles affect both sides.

Can Varicocele Be Prevented?
There is currently no proven way to prevent varicocele.

However, early detection is important. You should:

• Schedule routine urological examinations.
• Consult a specialist if you experience persistent testicular pain.
• Seek medical evaluation if you notice changes in testicular size.
• Undergo fertility evaluation if pregnancy has not occurred after one year of trying.

Prompt diagnosis allows for timely treatment and helps reduce the risk of long-term complications.

When Should You See a Urologist?
Schedule an appointment if you experience:

• Persistent or recurring testicular pain.
• Swelling of the scrotum.
• Enlarged or visible veins in the scrotum.
• One testicle becoming smaller than the other.
• Difficulty conceiving after one year of regular unprotected intercourse.
• Abnormal semen analysis results.

Early evaluation can help preserve fertility and improve your overall quality of life.

Protect Your Men's Health with BlueNet Hospitals

At BlueNet Hospitals, our Urology specialists provide comprehensive evaluation and personalized treatment for varicocele and other conditions affecting the male reproductive and urinary systems.

Using advanced diagnostic technology and minimally invasive surgical techniques, our team is committed to helping preserve fertility, relieve discomfort, and improve your overall quality of life.

Schedule Your Consultation

📲 Schedule your medical evaluation in Los Cabos:
+52 (624) 151 0693

Frequently Asked Questions

1. Does every varicocele require surgery?

No. If the condition causes no pain, fertility problems, or testicular damage, your doctor may recommend regular monitoring instead of surgery.

2. Can varicocele cause infertility?

Yes. Varicocele is one of the most common treatable causes of male infertility, although not every man with the condition will experience fertility problems.

3. How is a varicocele diagnosed?

A urologist diagnoses varicocele through a physical examination and, when necessary, a scrotal Doppler ultrasound.

4. Can varicocele surgery improve fertility?

Yes. In many cases, varicocele repair improves semen quality and increases the chances of achieving pregnancy, depending on the patient's individual circumstances.

5. When should I see a specialist?

You should consult a urologist if you experience testicular pain, scrotal swelling, changes in testicular size, or difficulty conceiving.