Carpal Tunnel Syndrome And Tarsal Tunnel Syndrome Carpal tunnel syndrome is a condition in which irritation of the wrist's median nerve causes tingling and numbness of the thumb,...learn more Â». In This Article.
1 Argyria-characterised by a metallic, slate-grey or blue-grey pigmentation. 2  The hyperpigmentation is most apparent in the UV-exposed areas of skin, especially the forehead, nose, and hands, as well as mucous membranes. 3  Argyria results from prolonged contact with or ingestion of silver salts.
The term olive skin tone refers to a darker pigment of Caucasian skin. It is also known as a warm or tan complexion. Inhabitants of numerous countries are known to have this warm skin tone, which is produced when a somewhat average amount of melanin exists within the skin. This lighter brown complexion exists between pale skin and dark skin. Olive coloring is technically a yellow pigment.