Red dots on the skin can appear for many reasons—some harmless, others more serious. Common causes include allergic reactions, acne scars, insect bites, heat rash, and vascular birthmarks. “Cherry angiomas,” small red bumps from blood vessel overgrowth, often increase with age.

Tiny red spots known as “petechiae” or “purpura” result from bleeding under the skin due to damaged blood vessels. While usually harmless, they can sometimes indicate platelet issues or underlying diseases. Heat rash occurs when sweat is trapped beneath the skin, causing small, itchy bumps.

Infections like folliculitis, cellulitis, or impetigo—a contagious bacterial condition—may also cause red dots. Autoimmune disorders and “vasculitis,” the inflammation of blood vessels, are more serious possibilities.

For mild irritation, home remedies can help. “Aloe vera gel soothes irritation,” and “coconut oil helps moisturize and reduce inflammation.” Dandelion root tea may also support skin health.

If spots worsen, spread, or change in color or shape, medical attention is essential. Maintaining good hygiene, avoiding irritants, and eating a balanced diet can help keep skin clear and healthy.