Red dots on the skin can appear for various reasons. While some may disappear on their own, others may require appropriate treatment. Common causes of red spots include allergic reactions, acne scars, vascular birthmarks, angiomas, protein overproduction, heat rash, insect bites, leaking capillaries, and autoimmune conditions.

Petechiae and Purpura
These tiny red dots are caused by damaged blood vessels or capillaries. They can result from stress, coughing, or certain medications. While typically harmless, they can sometimes indicate underlying platelet disorders.

Cherry Angiomas
These small, raised, bright red bumps are caused by an overgrowth of blood vessels and are usually harmless. They tend to appear with age.

Heat Rash
Heat rash occurs when sweat becomes trapped in sweat ducts, leading to itchy, red dots on the skin.