Petechiae are tiny purple, red, or brown spots on the skin. They usually appear on your arms, legs, stomach, and buttocks. You might also find them inside your mouth or on your eyelids. These pinpoint ...

Medically reviewed by Susan Bard, MD Key Takeaways Some red spots on the skin can be harmless, while others may require medical attention. Conditions like heat rash, cherry angiomas, lichen planus, ...

Acute myeloid leukemia (AML) is a rare type of cancer. In 2020, only about 20,000 people in the United States received new diagnoses of AML. It can be diagnosed at any age, but it’s more commonly seen ...