":Exposure to heavy metals such as lead, mercury, and cadmiumLowe's disease, a rare genetic disorder of the eyes, brain, and kidneysWilson's disease In adults, Fanconi syndrome can be caused by various things that damage the kidneys, including:Certain medications, including azathioprine, cidofovir, gentamicin, and tetracyclineKidney transplantLight chain deposition diseaseMultiple myeloma Primary a" . . . .