Information

Varicocele is an enlargement of the veins in the scrotum, specifically in the so-called pampiniform plexus, similar to varicose veins in the legs. It most commonly occurs on the left side and is one of the common causes of male infertility.

How does it develop?

Varicocele develops when the valves in the veins do not function properly, causing blood to accumulate in the veins around the testicle. Increased pressure and temperature in the testicular area can negatively affect sperm production.

  • Affects approximately 15% of men
  • Occurs in up to 30–40% of men with fertility problems
  • Most commonly develops during puberty and young adulthood

Symptoms

Many men have no symptoms. When symptoms do occur, they may include:

  • A dull or dragging pain in the testicle, often after prolonged standing or physical activity
  • A feeling of heaviness in the scrotum
  • Visible or palpable enlarged veins
  • Shrinkage of the affected testicle
  • Fertility problems

How does varicocele affect fertility?

Varicocele may:

  • Increase testicular temperature
  • Reduce tissue oxygenation
  • Increase oxidative stress
  • Negatively affect sperm quality, motility and count

Not all men with varicocele experience infertility, but it is one of the most common treatable causes of male infertility.

When is treatment necessary?

Treatment is recommended in cases of:

  • Pain
  • Impaired fertility and abnormal semen analysis
  • Shrinkage of the testicle
  • Significant varicocele in young men

If you have no symptoms and your semen analysis is normal, monitoring may often be sufficient.

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