Heat Rash (Miliaria)
Clusters of tiny red dots from blocked sweat glands
✅
Allergic Reactions / Hives
Raised, itchy red spots that come and go
Most develop gradually and require no treatment.
✅ 11 Common Causes of Red Dots (And What They Mean)
1. Cherry Angiomas (Campbell de Morgan Spots)
Caused by clusters of dilated blood vessels
Very common after age 30
Harmless — but can be removed for cosmetic reasons
When to see a doctor: If they bleed easily or change rapidly.
2. Petechiae (Tiny Broken Capillaries)
Flat, pinpoint red or purple dots (don’t blanch when pressed)
Caused by strain (coughing, vomiting), injury, or low platelets
Can appear after aggressive rubbing or tight clothing
⚠️ See a doctor if: Widespread, accompanied by fever, bruising, or fatigue — could indicate infection or blood disorder.
3. Sun Damage (Solar Lentigines & Telangiectasia)
Reddish-brown spots or visible capillaries from UV exposure
Often on face, chest, shoulders, arms
More common in fair-skinned individuals
✅ Prevention: Daily sunscreen, protective clothing
4. Keratosis Pilaris (“Chicken Skin”)
