Cyst after a run: Without seeing this it would be difficult to tell you what it is, so yes, you need to go to a physician to have them examine it. However, since it seems like you have not had anything like this before that might rule out types of vascular lesions we might be concerned about. Thus, a blister from excessive chaffing during your run would be a possibility - to be sure just go have it checked out.
Answered 4/17/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
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