Probably not: Darkening inside a blister is usually just a little bit of blood. This shouldn't be a concern unless you are diabetic, have numb feet or poor circulation or it doesn't resolve in a few weeks. If any of these conditions exist, see a podiatrist for an evaluation.
Answered 9/30/2018
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2 doctors weighed in across 2 answers
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A doctor has provided 1 answer
3 doctors weighed in across 2 answers
A doctor has provided 1 answer
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