A mass within the scrotum. If a varicocele is substantial enough, a mass just like a "bag of worms" can be noticeable above the testicle. A smaller varicocele can be as well smaller to see but apparent by contact. We use the data you provide to deliver you the content https://www.sgvascularctr.com/what-are-veins-and-why-should-i-know-about-them/