Rarely, arsenic poisoning can be a cause of white spots on the nails, Lipner says. If heavy metal poisoning with arsenic or thallium is to blame, the white spots typically appear as horizontal ...

27 The presence of hyperkeratosis suggests arsenic poisoning. If excessive amounts of arsenic are found in the urine, hair or nails or if thallium is present in the urine, the final diagnosis can ...

Healthy fingernails are typically a light ... infection, heart failure, or arsenic poisoning. Apparent leukonychia can be caused by kidney failure, liver failure, diabetes, or anemia.

Arsenic poisoning can cause nausea, vomiting, diarrhea, weakness and headaches -- but those symptoms can also be attributed to the flu or other common illnesses. Soil tests at schools, day care ...

It soon became clear what they were seeing: classic signs of arsenic poisoning. In a tragic irony, the reason was eventually traced back to an otherwise hugely successful public-health program.