What is argyria?
Argyria is a condition caused by prolonged contact with silver or consuming silver in food and fluids. Less commonly, excessive and prolonged use of drugs containing small amounts of silver may also lead to agyria, as well as the use of silver during certain surgical and dental procedures. The exposure to silver can be seen as discolored patches on the skin blue-gray to gray-black in color. The mucous membranes lining the eyes (conjunctiva) and inside of the mouth (oral mucosa) may also have this discoloration. Overall argyria is a rare condition in this day and age and usually does not have any serious health effects beyond the skin discoloration. It is nevertheless important to understand that in very large doses, silver ingestion can be fatal.