The size of epididymal cysts is not a decisive factor for surgery. Generally speaking, surgical resection is recommended when the cysts are larger than 3~5cm and the patients have obvious clinical symptoms. Epididymal cyst refers to a cystic lesion that occurs in the epididymis, mostly in the head of the epididymis, which is a benign lesion. When the cyst is small, the patient may not have any clinical symptoms. If the size of the cyst is too large, the patient will show pain in the scrotum and swelling discomfort in the scrotum. If the cyst is larger than 3-5cm and there is obvious discomfort, the scrotal cyst can be surgically removed. Removal of the scrotal cyst can cure the disease, but since epididymal cysts may recur after surgery, regular follow-ups are recommended to monitor the progress of the disease. It is also important to note that men with fertility requirements should strictly grasp the indications, and even if there are indications for surgery, they should try to solve their fertility problems before undergoing surgery. If the patient is not feeling well, he should consult the doctor for examination and early treatment.