If you notice petechiae spreading or appearing with fever, fatigue, or bruising, seek medical help immediately.

2. Autoimmune Disorders
Conditions like lupus or vasculitis may cause red dots along with fatigue, joint pain, or other symptoms.

3. Liver Issues
Liver dysfunction may show up as unexplained red or purplish spots on the arms, chest, or back due to changes in clotting ability.

What Should You Do?

Check if the spots disappear when you press them
Note any additional symptoms like fever, fatigue, bruising, or swelling
Monitor their number, size, and color over a few days
See a doctor if they spread, multiply, or appear with other health issues

Final Thought

Small red spots on your arms might seem minor, but your skin is often a window into your internal health. While many causes are harmless, some may point to something more serious. When in doubt, listen to your body—it might be trying to tell you something important.

FAQs

1. Are all red spots dangerous?
No. Many are harmless, like cherry angiomas or heat rash. But sudden or unexplained red spots should be watched closely.

2. What if they itch or burn?
That’s usually a sign of irritation, allergy, or infection. Treat with gentle skincare and see a doctor if it persists.

3. Can poor diet cause red spots?
Yes—deficiencies in vitamin C or K can affect skin and blood vessels, causing red dots or bruising.

4. Should I be worried if red spots don’t go away?
If they last longer than a week or appear with other symptoms, it’s best to get checked by a healthcare professional.