Varicocele: Symptoms, Diagnosis, and Treatment Options A varicocele is a swelling in the veins of the scrotum due to the reflux in the testicular veins, a condition which, although resembling the varicose veins, is commonly observed in the lower limbs. Varicoceles can arise at any age; however, they most often occur between ages 15 and 25 years. Sometimes, men will not notice a varicocele, whereas it may bring along discomfort and cause infertility issues or other related problems in other cases, necessitating an immediate need for the varicocele natural treatment.