I have brown spots scattered around my stomach and waist. Are these dangerous?

Brown spots on the stomach and around the waist are most often... Seborrheic keratosis This is caused by genetics and increasing skin aging. They are usually harmless and do not become cancerous. Yes, the population aged 50 and above is larger. 80-90% will start to develop skin tags (Seborrheic Keratosis). At least one spot on the body, and the number increases with age.

Observable characteristics The surface will look It's slightly rough, as if someone had stuck modeling clay on it. Or some spots may appear smooth, ranging from light to dark brown. There's no need to remove them as they're under clothing, but if you're really concerned, you can consult a doctor. Removal is usually done using a laser. CO2 Laser Yes