These small white spots often become more noticeable as a tan disappears, standing out against slightly darker surrounding skin. For some, they seem to multiply over time, which can naturally raise questions or concern.
If you’ve spotted these marks and wondered what they are or whether they signal a health problem, the explanation is often reassuring.
What Are These Small White Spots?
These marks are commonly known as idiopathic guttate hypomelanosis, or IGH. While the name may sound alarming, the condition itself is harmless and extremely common.
IGH refers to small, flat white patches that form when the skin loses melanin, the pigment responsible for giving skin its color. The spots are usually only a few millimeters wide and can appear in people of all skin tones and backgrounds.
They most often show up on areas that receive frequent sun exposure, such as the legs, arms, and sometimes the face. Studies suggest that around 50% to 80% of people over the age of 40 will develop at least a few of these spots, making them a normal part of the skin’s aging process.
