
What Causes Bruises On Forearm, Wrist And Elbow?

they are petechiae
Detailed Answer:
Hello,
these little marks are called petechiae. They represent blood extravasation under the skin. There are a lot of potential causes. I'll mention some:
- injury (scratching the skin because of itching could be enough)
- low platelet count (a complete blood count should suffice to confirm or exclude it)
- vasculitis
- drugs (aspirin, antiepileptic drugs, corticosteroids etc)
- various infections (endocarditis, various viral infections, etc)
etc
I usually suggest starting with a complete blood count, INR, aPTT, urea, creatinine and bleeding time test. These are the essential initial tests to identify clotting problems. Depending on the results, more tests might be needed.
I hope you find my comments helpful!
If you'd like any clarification, further information or you'd like to continue this discussion by providing more data, you can contact me again, using your follow-up questions.
Kind Regards!

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