10 Health Warnings Your Fingernails May Be Sending - Page 2 of 6 - Herbs Info

10 Health Warnings Your Fingernails May Be Sending


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2 – Blue color
Similar to clubbing, a bluish tinge to the nails signifies an oxygenation problem in the body. The nails appear more blue when oxygen level in the blood is too low, or if the body temperature is too cold. It could also indicate silver ingestion. [2]



3 – Slow capillary refill time
This one is interesting: The amount of time that blood fills the capillaries can be measure by applying pressure to the nail. Normal capillary refill time (CRT) is less than three seconds, and when this time is lengthened, it can signify a problem with the amount or flow of blood through the body. [3]



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