American Board of Psychiatry and Neurology (ABPN) Practice Exam 2026 - Free ABPN Practice Questions and Study Guide

Restless legs syndrome (RLS) is characterized by an irresistible urge to move the legs, often accompanied by uncomfortable sensations. For diagnosis of RLS, the symptoms must persist for at least three months. This duration criterion helps to differentiate RLS from transient symptoms that may occur due to temporary factors such as stress or medication side effects. A three-month period ensures that the individual has been experiencing the condition long enough for a thorough evaluation and consideration of underlying causes or comorbid conditions. It also aligns with clinical guidelines that emphasize chronicity as a key characteristic of RLS, reinforcing the need for a consistent diagnosis rather than a fleeting episode. Understanding this timeframe is critical for practitioners in effectively diagnosing and managing restless legs syndrome.