Resources and videos. There are several different types of penis lumps. Many types are harmless. Some common lumps include cysts on the penis, ulcers on the penis, genital warts, and penis papules. Very rarely, a penis lump will be cancer. Learn more about foreskin problems.
Jump to content. Home treatment for a lump, such as an epidermal skin cyst, may relieve symptoms but may not make the cyst go away. An epidermal cyst is a small, round lump in the top layer of skin called the epidermis. It may be filled with a soft, yellow substance called keratin.
Jump to content. Top of the page Check Your Symptoms. Male genital problems and injuries can occur fairly easily since the scrotum and penis are not protected by bones.