Medically reviewed by Susan Bard, MD Key Takeaways Some red spots on the skin can be harmless, while others may require medical attention. Conditions like heat rash, cherry angiomas, lichen planus, ...

Red dots may appear on your skin for various reasons, including acne, autoimmune conditions, injury, and infections. The most common cause of red dots on the skin is acne. They can appear anywhere on ...

That mysterious dark spot on your arm. The raised bump that appeared overnight. The cluster of tiny dots near your shoulder. When new marks appear on your skin, it’s natural to feel concerned about ...