Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Functional symptom
Introduction
Functional symptom is sometimes used in medicine to describe symptoms that have no current visible organic basis, e.g. if they are a result of psychological or perceptual dysfunction. Historically, functional symptoms tend to be reclassified as organic as investigative techniques improve. It is the opposite of organic symptom.