Red dots on the skin can result from various causes—some harmless, others needing medical attention. Petechiae & Purpura: Tiny red spots from broken capillaries. Often harmless but can signal conditions like platelet disorders. Cherry Angiomas: Bright red bumps from blood vessel overgrowth. Common with age and usually harmless. Heat Rash: Caused by trapped sweat, leading to itchy red dots—especially in...