Let’s explore the most likely causes—and when you might want to mention them to a doctor.
The Most Common Cause: Idiopathic Guttate Hypomelanosis
The medical name is a mouthful, but the condition itself is simple: idiopathic guttate hypomelanosis (often called IGH).
Let’s break it down:
Idiopathic – The cause isn’t fully understood
Guttate – Latin for “teardrop-shaped”
Hypomelanosis – Loss of skin pigment
