Varicose veins occur on the left side of the spermatic cord, but it is not possible to determine how many veins are varicose, and the situation varies from person to person. Varicocele refers to the abnormal elongation and tortuosity of the veins in the spermatic cord. Since the veins contain several veins, it is not possible to determine how many veins are varicose as each person is different. Primary varicocele is the most common clinical condition, occurring in young adults and mostly on the left side. Clinical manifestations of varicocele include enlargement of the scrotum on the affected side and a sensation of swelling, which can be relieved by lying down. For patients with mild symptoms, scrotal braces can be used and regular follow-up can be done; for those with more severe symptoms, surgery can be performed, such as spermatic vein ligation. To summarize, if you feel unwell, please consult a doctor as soon as possible.