The treatment of cyst in the head of the left epididymis is based on surgical treatment. Epididymal cyst is the most common type of benign tumor in the area of the epididymis, and in many cases, it is a semen cyst, which is formed as a dilatation of the testicular output tubules in the area of the epididymis, which contains semen and spermatozoa. For small-sized epididymal cysts with no obvious clinical symptoms can be left untreated with regular review. For larger ones with clinical signs, surgical removal can be considered. Before surgery, it is necessary to clarify whether there is a need to have children or to have children again. For those who have a need to have children, it is recommended to consider surgery after having children.