Can Varicocele Cause Erectile Dysfunction?
Medically reviewed by Linda Girgis | MD, Girgis Family Medicine on August 22nd, 2026.
Yes, varicocele can cause erectile dysfunction, though it affects only 15-20% of men with this condition. Varicoceles reduce blood flow and increase scrotal temperature, which can damage testicular function and decrease testosterone production. Low testosterone levels directly impact erectile function and sexual desire. Studies show men with varicoceles have 23% lower testosterone levels on average compared to unaffected men. The condition may also cause psychological stress from pain or fertility concerns, further contributing to erectile problems. Varicocele repair surgery can improve testosterone levels and erectile function in many cases, with success rates ranging from 60-80% for restoring normal sexual function.
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