What causes small white spots on the penile skin?

Small white spots on the penile skin are commonly caused by genital warts (caused by human papillomavirus, HPV). Frequent sexual activity or having multiple sexual partners over a prolonged period may increase the risk of developing genital warts, which initially manifest as small white spots on the penis. As the condition progresses, the lesions may evolve into cauliflower-like or papillomatous growths. Treatment options typically include laser ablation or surgical excision. Alternatively, these white spots may represent pearly penile papules—a benign, non-contagious condition often associated with inadequate local hygiene and subsequent irritation of the penile skin. Appropriate management should be tailored to the specific diagnosis.