May 28, 2026

Hidden “Bag of Worms” Condition That May Affect Fertility

Healthcare professionals are warning about a testicle condition that is reportedly affecting as many as one in five men.

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Varicoceles are surprisingly condition, impacting between 15 and 20 percent of all men and can sometimes affect male fertility.

A varicocele is when a vain or even a collection of veins in the scrotum become enlarged, which ultimately ruins the optimal environment for sperm.

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The NHS say that these veins are most common on the left scrotum, but can occur on either side.

The NHS Milton Keynes University Hospital explains: “It is not certain what causes varicocele. It is possible that a valve defect in the veins may be causing the veins to widen. Varicocele is not always visible but it does affect the blood flow in the testicles.

The condition ruins the optimal environment for sperm

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