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A 19-year-old female asked:

Sudden bruising on arm. red, hurts when pressed on it. appeared suddenly. no injury or trauma. help?

1 doctor answer3 doctors weighed in
Dr. Alec Hochstein
Podiatry 24 years experience
Get a blood test: Sudden bruising without injury should be investigated with a complete blood cell count. This will include a platelet count as well as red blood cells and white blood cells. Start with your primary doctor, for the blood test. He/she may send you to a hematologist if the test indicates and abnormality. Or maybe you just are an aggressive sleeper. Don't ignore it, simple blood test

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Last updated Jan 5, 2019

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