Not surprisingly, these white spots typically show on areas that see the most sun, such as the shins, arms, back, and face. They're small like freckles—usually less than 1/8 of an inch—and ...

The condition results in smooth, asymptomatic white spots that most commonly appear on the arms or legs, says Emily Wood, MD, board-certified dermatologist at Westlake Dermatology. Genetics can ...