Argyria is a condition where there is too much silver or silver dust (Latin: argentum) in your system.
A certain amount of silver can be beneficial and help resistance against bacteria.
But too high amounts can cause severe damage and as a result turn your skin blue.If you think only the cast of the Blue Man Group has blue skin, think again. Folks who have ingested or had prolonged contact with silver salts may end up with a condition called argyria, in which the skin is stained a grey-blue shade. What causes people to come into contact with silver particles? Working with silver, such as in mining, refining and manufacturing. Colloidal silver has also been used to treat infections in alternative medicine, and silver dietary supplements have been marketed to treat cancer, though never proven safe or effective.
More here: 9 uncommon skin conditions
