You're getting dressed.
You look in the mirror.
And there they are: small red dots on your arm, chest, or leg.
They weren't there yesterday.
They don't itch.
They don't hurt.
But you can't stop staring.
Should you be worried?
The truth is:
Most red dots on the skin are completely harmless.
But some can be a sign of an underlying condition.
The key is knowing the difference.
Let's explore 11 possible causes of red dots, from the common and benign to the rare and serious, so you can react with awareness, not anxiety.
🔍 What are red dots on the skin?
Red dots are usually caused by changes in small blood vessels (capillaries), which may be broken, clustered, or dilated.
Common Features:
âś…Measure
Accurate to within a few millimeters
âś…Color
Bright red, dark red, or purple
âś…Texture
Flat or slightly raised
âś…Feeling
Usually painless and non-itchy
They can appear anywhere: arms, torso, legs, face, and become more common with age.
Let's analyze in detail what they could mean.
🔬11 Possible Causes of Red Spots on the Skin
1. Cherry Angiomas (Campbell-de-Morgan spots)
What they are: Small, bright red bumps caused by clusters of blood vessels
Who gets them: Most adults over 30; they increase with age
Location: Trunk, arms, shoulders
Are they dangerous? ❌No, they are completely benign.
Treatment: Not necessary, remove for cosmetic reasons only
âś… Consider them as "beauty moles" for your blood vessels.
2. Petechiae (small broken capillaries)
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