A glans cyst is a cystic change that occurs in the glans area, most of which are located at the edge of the external urethral opening of the glans and the prepuce tie, and some are located in the coronal sulcus and the midline of the scrotum. A glans cyst is a cyst on the glans with a small vesicle-like swelling, usually corn to pea in size. The walls of the cysts are usually thin, and there is a watery or jelly-like fluid inside the cysts, which are usually asymptomatic. Large cysts can interfere with urination and can be accompanied by infections. The main causes of glans cysts are congenital developmental abnormalities and chronic inflammation of the glans, as follows: (1) Congenital developmental abnormality of glans: it is caused by the abnormality during the embryonic development period, and the main symptom is glans lump. (2) Chronic inflammation of the glans: bacterial infection, viral infection, as well as phimosis lead to chronic inflammation of the glans, long-term stimulation of the local skin, causing tissue hyperplasia, the formation of cystic lesions. To sum up, in the clinic, glans cysts are generally common in children, when parents find it, they should go to the hospital in time, under the guidance of specialists to take the most appropriate treatment measures according to the condition, so as not to delay the condition.