What Are Varicoceles? A varicocele is essentially a varicose vein of the testicle or scrotum. In normally functioning veins in the scrotum, one-way valves allow blood to flow from the testicles back into the rest of the body. In a varicocele, these valves do not function correctly, thus allowing blood to pool and enlarge the … Continue reading All About Varicoceles Symptoms, Risk Factors, Diagnosis and Treatment