Red dots on the skin can appear for many reasons, ranging from harmless to serious conditions.

**Petechiae and Purpura** are “tiny red dots \[that] appear due to damaged blood vessels” and may result from stress, medications, or platelet issues.

**Cherry Angiomas** are bright red bumps that are “generally harmless” and tend to increase with age.

**Heat Rash** forms when sweat is trapped, causing red, itchy spots, especially in hot weather.

**Allergic Reactions** to foods, substances, or insect bites can cause itchy, red rashes. **Folliculitis** is an infection of hair follicles, often bacterial or fungal, creating red, pus-filled dots.

More serious causes include **Cellulitis**, a bacterial infection that “requires medical attention and treatment with antibiotics,” and **Impetigo**, a contagious infection that starts with red sores that “ooze fluid” and crust over.

**Vasculitis**, the inflammation of blood vessels, may relate to autoimmune diseases. **Hemangiomas** are red birthmarks caused by abnormal blood vessel growth, usually harmless but sometimes needing treatment.

If red dots appear with symptoms like fever or pain, it’s best to seek medical advice. As the article warns, “Better to be safe than sorry.”