<unk>  (also known as<unk> alism or hydrargyria, or acrodynia when affecting children) is a disease caused by exposure to<unk>  or its toxic compounds.<unk>  is a cumulative heavy metal poison which occurs in its elemental form, inorganically as salts, or organically as organomercury compounds; the three groups vary in effects due to differences in their absorption and metabolism, among other factors. However, with sufficient exposure all<unk> -based toxins damage the central nervous system and other organs or organ systems such as the liver or gastrointestinal tract.
Symptoms typically include sensory impairment (vision, hearing, speech), disturbed sensation and a lack of coordination. The type and degree of symptoms exhibited depend up on the individual toxin, the dose, and the method and duration of exposure.
Due to its toxicity, there have been campaigns in many countries to ban<unk>  altogether.
Mercury poisoning
Gold poisoning
Lead poisoning
Arsenic poisoning
Organophosphate poisoning
Lead poisoning-1
Strychnine poisoning
Manganese deficiency 