A 27-year-old female asked:
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why are my fingernails blue? they're not cold at all, just blue. are blue fingernails always a sign of a heart problem? pict >> http://goo.gl/hsf6w

2 doctor answers
Dr. Jerome Zacks
51 years experience Cardiology
Cyanosis: Cyanosis often represents a low oxygen level, representing a cardiac or pulmonary problem. It merits the evaluation by a cardiologist or a pulmonologist.
Answered on Aug 27, 2020
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Dr. Barton Cook
31 years experience Pediatric Cardiology
Not uncommon: If they are always blue it can be a sign of cyanotic heart disease. If they are sometimes blue it can be a condition called raynaud's disease.Here is a reference: http://www.Nlm.Nih.Gov/medlineplus/raynaudsdisease.Html.
Answered on Jun 15, 2017
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