Complications of varicocele include male infertility and testicular atrophy. Varicose veins of the spermatic cord are a kind of vascular lesion in clinic, which generally refers to the abnormal tortuosity, elongation and expansion of the spermatic cord’s trailing venous plexus, and is prone to cause male infertility and testicular atrophy and other complications in male patients. 1. Male infertility: after the varicose veins of male spermatic cord appear, the blood flow rate of testicles is affected, which will affect the production of male sperms, and ultimately lead to male infertility, in addition, male spermatic veins of varicose veins may also damage the function of male epididymis, affecting the quality of male semen. 2. Testicular atrophy: varicocele can also affect the secretion of male sex hormones, leading to abnormal testicular development and testicular atrophy. Especially in adolescent children, the chance of testicular atrophy caused by varicocele increases with age. If you have varicocele, it is recommended that you go to the hospital for treatment in time and have regular checkups under the guidance of your doctor.