A mass from the scrotum. If a varicocele is significant ample, a mass like a "bag of worms" might be seen previously mentioned the testicle. A more compact varicocele might be too tiny to view but noticeable by contact. So in some ways, it's a cycle. It may get started https://www.sgvascularctr.com/what-are-veins-and-why-should-i-know-about-them/