Sebaceous cysts on the penis are usually considered as sebaceous cysts in the penile area, which usually do not require special treatment, but should be cleaned daily. Normal skin contains a large number of sebaceous glands, the function of sebaceous glands is to secrete sebum, play a protective role for the skin and discharge secretions. If the follicles are damaged by moisture or inappropriate clothing, the sebaceous glands may become blocked, resulting in sebaceous cysts of varying sizes on the pubic skin, as well as on the skin of the penis. Usually, sebaceous cysts have little effect on the body and therefore require no special treatment. However, when they are infected by pathogenic bacteria, they are prone to inflammation and pus, so it is recommended that people with sebaceous cysts do a good job of cleaning up in their daily lives.