Does varicocele treatment improve fertility in men?
Some experts think that varicoceles can affect fertility in men. If men with a palpable varicocele and poor sperm quality have treatment, the chances of their partner becoming pregnant could possibly improve.
Varicoceles are varicose veins in the scrotum caused by blood building up in the testicles and permanently enlarging the veins. There is some evidence that varicoceles might reduce men’s fertility. But scientists don't yet fully understand why that may be. Some experts believe that the quality of the sperm is poorer because the varicocele reduces the blood supply to the affected testicle. Others believe that the build-up of blood in the scrotum raises the temperature of the testicle, which could affect sperm production.