Severe varicocele, in severe cases, may lead to testicular atrophy. Varicocele may be associated with venous valve insufficiency, impaired venous return, etc. When varicocele is more severe, it may seriously affect the blood circulation to the testicles, which in turn may cause testicular atrophy. Therefore, for severe varicocele disease, surgical treatment should be considered, such as transperitoneal laparoscopic spermatic vein ligation, spermatic vein embolization, and so on, and the specific surgical method should be determined according to the actual situation. After the surgery, you should take good care of yourself, keep your lower body clean, avoid strenuous exercise, and go to the doctor for regular checkups.