G14: Postpolio syndrome

Postpolio syndrome (PPS) is a neurological disorder that typically emerges several years after recovery from an initial acute attack of the poliomyelitis virus. The exact cause of PPS is unknown, though it's believed that it results from the gradual deterioration of nerve cells in the spinal cord (motor neurons) that were damaged during the original polio infection. Common symptoms include progressively worsening muscle weakness, fatigue, and a gradual decrease in the size of muscles (atrophy), as well as pain in muscles and joints. Some people may also experience breathing or swallowing problems, sleep-related breathing disorders, and decreased tolerance of cold temperatures. As a late effect of poliomyelitis, PPS is not contagious. The disease onset typically occurs slowly but can vary widely, from very mild to debilitating. Although PPS can affect how you carry out daily life activities, it is not life-threatening.