Dyscrasia is a nonspecific term that refers to a disease or disorder, especially of the blood. The latter is called a blood dyscrasia.
Before modern medicine, it meant an imbalance of four body fluids: blood, bile, lymph, and phlegm.
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, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.