Many penis lumps are harmless and don't need treatment. Fordyce spots are small yellowish or white spots on the head or shaft of the penis. This is a hard swelling that suddenly appears on the shaft of the penis after sex or masturbation . Lichen planus is a non-infectious itchy rash of purple-red bumps that can affect.
It could simply be a pimple, cyst, or ingrown hair. However Cysts are firm or hard fluid-filled bumps that can appear on your penis. You could.
Although cysts usually aren't cause for concern, STD-related bumps may need immediate treatment to.