Yes. See a urologist

Yes. Varicoceles that are symptomatic/bothersome can be treated. Urologists treat them by surgically tying off the vessels. Interventional Radiologists treat them by blocking/closing down the vessels from the inside. I would recommend consultation with an Interventional Radiologist.

Varicocele is a problem of the veins that drain the area of the testicle. It can be painful and be associated with issues with fertility in men. It is not a condition that I treat. For management of this problem you have to see a urologist.

To answer your question, yes it is treatable. (It can be fixed)