Epididymal head cyst is the most common cause of epididymal cysts, the size from a few millimeters to a few centimeters may occur, the patient’s cyst 1CM diameter is not large. Epididymal head cysts are mainly caused by congenital causes, the residual tissue after the degeneration of the renal tubules during the development of the infant embryonic period to form epididymal head cysts, generally speaking, epididymal head cysts <2cm and does not affect the patient's daily life and work, do not need special treatment, and regular follow up to observe the changes of the cyst. If the diameter of the cyst is too large or affects the patient's quality of life, it should be treated. Epididymal head cysts can be treated by medication or surgery. Drug treatment refers to fluid aspiration and sclerosing agent injection by cyst puncture under ultrasound guidance. Commonly used sclerosing agents include anhydrous ethanol, methylprednisolone and so on. The above medications should be used under medical supervision. If the patient is conscious of scrotal enlargement, scrotal swelling or pain, which affects the quality of normal life and work, he should immediately go to the urology department or men's department, and follow the doctor's instructions for treatment, in order to strive for a speedy recovery.