Penile melanosis is usually a benign or harmless condition. It's characterized by small patches of dark skin on the penis. This change in color is.
There are many possible causes for penile discoloration, but you A mild bruise will turn a darker color as it heals and then will fade away.
It's common for the penis and testicles to be darker than the rest of the My penis and testicles have been much darker in colour than the rest.
A look at purple penis, a color change that most often occurs during arousal. Learn more about the other potential causes and what to do here.