White spots on the skin: what they are and why they appear, according to specialists

Skin experts point to photoaging as the most common cause, which is essentially long-term skin wear from sun radiation. Genetics can also influence it, and the effects of natural aging play a part—particularly after age 40.

People with lighter skin tones and those who have spent years outdoors without solid sun protection are more prone to seeing these dots appear. Even so, dermatologists emphasize it is not caused by infections, allergies, fungi, or serious diseases. It carries no health risk.

How It Looks and Feels

These white spots are typically round or oval with crisp edges, showing no change to the surface of the skin. They show up most commonly on areas often exposed to the sun, like the legs, arms, and shoulders.

If you run your fingers over them, the skin feels completely normal. There’s no flaking, redness, or irritation, and most people will notice the spots simply stay the same over time.

Treatment Options and Prevention

There isn’t a treatment today that fully removes these spots. That said, some dermatological procedures may help soften their appearance, depending on an individual evaluation by a skin specialist.

However, the most important advice experts underline again and again is sunscreen—used daily and consistently. Good sun protection won’t reverse existing dots, but it goes a long way in preventing new ones and keeping your skin healthier overall as the years pass.

When to Seek Professional Advice