1st, tell a parent: If you have a bruise you likely did bump it and the bump could be a collection of blood under/within the bruise. It should naturally go away with time and nearly be gone after a week. Larger bruises take longer. If it keeps happening or doesn't resolve you should see a doctor.
Answered 8/18/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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