A varicocele is a condition characterized by enlarged veins within the scrotum, similar to varicose veins that occur in the legs. It typically develops during puberty and can affect one or both testicles. Varicoceles are often painless but may lead to discomfort or swelling. This condition can impact male fertility by affecting sperm production and quality. In some cases, treatment options such as surgery or embolization may be recommended to alleviate symptoms or improve fertility outcomes. Regular check-ups with a healthcare provider can help monitor the condition.