Not visible; veins are felt only during a Valsalva maneuver (straining).
Varicocelectomy is a very safe procedure with a low risk of complications. The most common post-operative issue is a hydrocele (fluid build-up around the testicle), which occurs in a small percentage of cases, and many resolve on their own. Non-surgical treatments like medication do not cure the condition and are only used for symptom management if surgery is not an option. varikotsele u detey 1982 ok ru link