Varicocele is a vascular lesion that refers to the abnormal expansion, elongation and tortuosity of the trailing venous plexus in the spermatic cord, which can lead to pain and discomfort and progressive testicular hypogonadism, and is one of the common causes of male infertility. Patients often have no obvious symptoms, mostly due to infertility examination and diagnosis; a small number of patients may have scrotal swelling in the standing position, scrotal local continuous or intermittent painful sensation of pain, vague pain and dull pain, can be radiated to the lower abdomen, inguinal area or posterior lumbar region, symptoms worsened by exertion or prolonged standing and walking, and the symptoms are reduced or disappeared after lying down and resting. In the past, most of the treatments for varicocele were based on surgical treatment. Nowadays, only a small needle eye in the neck or thigh root is needed to enter the spermatic vein through a guide wire catheter. Angiography is the gold standard for diagnosing varicocele, which can comprehensively show varicose blood vessels to avoid omission; while embolization can treat varicose diseased blood vessels, and good therapeutic effects can be harvested through spring coils and polydocarbophil.