The main symptom of argyria is the gradual appearance of bluish-gray or grayish discoloration of the skin, mainly in areas exposed to sunlight. The color change is permanent and may cause ...

Subsequent discoloration of skin occurs, with changes from deep purple ... similar or even identical to those related to drugs. Blue-grey or grey pigmentation can be seen in Addison disease ...

Discoloration around the lips and tongue may appear gray or white in people with darker skin, and the bluish tinge may be ...