Guillain-Barré syndrome is a rare neurological disorder where the body's immune system mistakenly attacks the peripheral nervous system. This can lead to muscle weakness, numbness, and in severe cases, paralysis. Symptoms often start with tingling in the legs and can progress rapidly, sometimes requiring hospitalization. The exact cause of Guillain-Barré syndrome is not fully understood, but it often follows an infection, such as a respiratory or gastrointestinal illness. Most people recover over time, although some may experience lingering effects. Early diagnosis and treatment are crucial for improving outcomes and managing symptoms effectively.