Introduction

A varicocele is an enlargement of the veins inside the scrotum. It is relatively common and may affect sperm production and male fertility in some men.

Many varicoceles do not cause noticeable symptoms and may only be discovered during a fertility evaluation. When symptoms or fertility problems are present, a urologist can assess the condition and discuss suitable treatment options.

Reviewed by Dr. N. Karthickeyan — Urologist, Andrologist & Men's Health Specialist — 15+ years of experience

What Is a Varicocele?

A varicocele develops when the veins that carry blood away from the testicles become enlarged. It is similar to varicose veins that can occur in other parts of the body.

A varicocele may affect the temperature and blood flow around the testicles, which can sometimes interfere with sperm production.

What Are the Symptoms of Varicocele?

Some men have no symptoms at all. When symptoms occur, they may include:

• A dull ache or heaviness in the scrotum

• Discomfort that becomes more noticeable after standing or physical activity

• Enlarged or prominent veins in the scrotum

• A difference in testicular size

• Difficulty with fertility

If you notice persistent scrotal discomfort or have concerns about fertility, a medical evaluation can help identify the cause.

How Is Varicocele Diagnosed?

A urologist usually begins with a physical examination of the scrotum.

Depending on the findings and the reason for evaluation, the doctor may recommend:

• Scrotal ultrasound

• Semen analysis

• Assessment of testicular size

• Other fertility tests when required

A semen analysis can help determine whether the varicocele is affecting sperm count, movement or other sperm characteristics.

Does Varicocele Affect Male Fertility?

Varicocele can affect sperm production in some men. However, having a varicocele does not automatically mean that a man will be infertile.

The effect varies from person to person. If a couple is having difficulty conceiving, evaluating both partners can help identify possible causes and guide treatment.

Varicocele Treatment Options

Not every varicocele requires treatment. Treatment may be considered when there is a significant impact on fertility, persistent discomfort, or other concerns identified during evaluation.

Treatment options may include:

• Observation: Small or symptom-free varicoceles may simply be monitored.

• Pain management: Mild discomfort may sometimes be managed with appropriate medical advice.

• Varicocelectomy: A surgical procedure used to close or redirect the affected veins and improve blood flow around the testicle.

The appropriate treatment depends on the individual's symptoms, fertility status, examination findings and test results.

Can Treating Varicocele Improve Fertility?

Treatment may improve semen parameters in some men, including sperm count and movement. However, results vary between individuals.

If fertility is the main concern, your urologist may recommend a semen analysis before treatment and follow-up testing after treatment to assess changes.

When Should You See a Urologist?

Consider seeing a urologist if you have:

• Persistent pain or heaviness in the scrotum

• Noticeably enlarged veins in the scrotum

• A difference in testicular size

• Abnormal semen analysis results

• Difficulty conceiving

Early evaluation can help identify whether a varicocele or another condition may be affecting fertility.

Conclusion

A varicocele is an enlargement of the veins around the testicle and may affect sperm production in some men. Since many varicoceles cause few or no symptoms, they may only be discovered during a fertility assessment.

Not every varicocele requires treatment. A urologist can assess the condition, perform the necessary tests and recommend treatment based on the individual's symptoms and fertility needs.