The red part : Usually the area closer/proximal to your trunk/body is receiving more blood flow than the outer (white) part. I won't worry about it. Go see ur pcp and get checked for blood pressure problems, anemia etc. Take care and enjoy life! http://www.M.Webmd.Com/skin-problems-and-treatments/features/what-your-nails-say-about-your-health.
Answered 4/4/2014
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