The causes of right spermatic varicose vein are divided into two kinds: 1. primary right spermatic varicose vein is caused by the incompetence of the venous valve of the right spermatic vein at the convergence into the inferior vena cava, which leads to the regurgitation of the right spermatic vein and causes the varicose vein, manifesting as the varicose vein is more obvious in the standing position and the varicose degree is reduced after lying down. 2. secondary right spermatic varicose vein is caused by the right retroperitoneal The varicose veins on the right side are caused by direct compression of the right spermatic vein by lesions such as tumors and abscesses, resulting in obstruction of spermatic vein reflux and elevated pressure, which shows that the degree of varicose veins on the right side does not change regardless of lying or standing position.