Many causes: There are many causes, did you bump into anything, are you on blood thinners of any kind? We need more details to find out what may be the cause.
Answered 7/20/2019
5.6k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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