What causes varicocele?

Varicocele is usually caused by abnormal blood flow through the veins that drain the testicle. When the valves inside these veins do not work properly, blood can pool around the testicle and cause the veins to become enlarged. Varicocele most commonly develops on the left side because of differences in the way the left testicular vein drains.

A varicocele develops when blood does not flow efficiently away from the testicle through the testicular veins.

Normally, small valves within these veins help keep blood moving in the correct direction. If these valves do not function properly, blood can flow backward and collect around the testicle, causing the veins to enlarge.

Why does varicocele commonly occur on the left side?

Varicocele is more commonly found on the left side because of the anatomical pathway of the left testicular vein and how it connects to the larger veins in the abdomen.

This difference in venous drainage can make the left side more susceptible to increased venous pressure.

Can varicocele be present from a young age?

Yes. Varicocele often develops during adolescence, when the testicles grow and blood flow increases.

Some men may not notice it until adulthood, particularly when it is discovered during an examination for testicular discomfort or fertility concerns.

Can physical activity cause varicocele?

Physical activity does not usually cause varicocele.

However, standing for long periods or strenuous activity may make existing varicocele symptoms, such as scrotal heaviness or aching, more noticeable.

Can varicocele be caused by lifestyle?

Varicocele is primarily related to venous anatomy and blood-flow problems, rather than being caused by a particular food, exercise routine, or lifestyle habit.

Maintaining general health is beneficial, but lifestyle changes alone cannot reverse an established varicocele.

Can an underlying condition cause varicocele?

Most varicoceles are related to the normal anatomy and function of the testicular veins.

However, a new, sudden, or unusual varicocele, particularly on the right side or one that does not decrease when lying down, should be evaluated by a urologist to rule out an underlying abdominal or retroperitoneal problem.

SCI International Hospital 

At SCI International Hospital, New Delhi, Dr. Gautam Banga, Senior Consultant Urologist and Andrologist, evaluates patients with suspected varicocele, testicular pain, scrotal swelling, and male fertility concerns. A detailed clinical examination and appropriate investigations help determine the cause and whether treatment is required.