Osmotic diuresis is increased urination due to the presence of certain substances in the fluid filtered by the kidneys. (This fluid eventually becomes urine.)
Causes, incidence, and risk factors
High blood sugar (glucose) can cause osmotic diuresis, as can medications such as Mannitol.
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.