Small birthmark looking spot on the side of my penis shaft. (Photo)

I recommend getting a formal evaluation with a cosmetic dermatologist. If necessary, this can be removed with lasers, radiowave or shave. See an expert. Best, Dr. Emer

While it is reassuring that the lesion is small, uniform in color, has discrete margins, and is asymptomatic, nothing substitutes for a thoughtful physical exam, and as a South Florida resident, you should consider getting routine total body skin surveillance a couple of times each year.  See an experienced Board Certified Dermatologist for assessment.