The most common reason for varicocele is the failure of the valves that are responsible for controlling blood flow through the veins of the scrotum. This issue is usually related to the anatomy of testicular veins. It is often seen on the left due to the way that the right testicular vein flows into the right renal vein, which makes it more susceptible to backflow and pressure. In this detailed guide, we look at the primary causes of varicocele, the ways for varicocele treatment without surgery, and a variety of options for treatment, including varicocele natural remedies.