A mass from the scrotum. If a varicocele is big enough, a mass just like a "bag of worms" might be seen earlier mentioned the testicle. A smaller sized varicocele can be also small to view but apparent by contact. A varicocele might trigger very poor growth of a testicle, https://www.sgvascularctr.com/what-are-veins-and-why-should-i-know-about-them/