Varicocele occurs when the network of veins that leave the testis (pampiniform plexus) become elongated and enlarged. The valves within the pampiniform plexus when they work properly only allow the blood to flow away from the testicle - if there is something wrong with them, blood builds up. Approximately 15% of men have a varicocele. A varicocele develops over time. The network of veins often appear visibly blue through the scrotum and feel like "a bag of worms". When the patient lies down symptoms are less evident. Varicose veins people get in Read from Source
