Subclinical: the varicose veins are not palpable on palpation and when the patient increases abdominal pressure by holding the breath (Valsalva test), but minor varicose veins can be detected by color Doppler examination. Type I: The varicose veins are not obvious on palpation, but can be palpated when the patient holds the breath and increases abdominal pressure (Valsalva test). Intraventricular spermatic angiogram shows up to 5 cm of intraventricular reflux of the contrast medium. Grade II: The varicose veins can be palpated. Grade III: Scrotal enlargement, visible to the naked eye as varicose veins on the surface of the scrotum. Indications for surgery: 1. varicose veins of degree III. 2, varicocele degree II or above combined with local discomfort of veins. 3, varicocele degree II or above combined with weak spermatozoa. 4.Venous varicocele degree II or above combined with oligospermia. 5.Between degree I and II varicocele, combined with oligospermia or weak spermatozoa, no significant improvement after 3~6 months of conservative treatment. In addition, in order to prevent testicular atrophy or affect reproductive function, surgery can be considered. Varicocele is mild and without obvious clinical symptoms, especially for unmarried young people or married people with normal fertility, it can be left untreated. If there are mild symptoms, scrotal brace or jockstrap can be used to promote blood return and reduce clinical symptoms. Excessive sexual activity should be avoided to reduce venous congestion in the pelvis and perineum.