Post-polio syndrome (PPS) is a condition that occurs in some people who have had poliomyelitis. It is estimated that up to 80% of polio survivors will eventually develop PPS.
PPS typically develops many years after the initial polio infection, usually 15–30 years. It can occur in people who were only mildly affected by polio or those who were more severely affected. It can also occur in people who have had the inactivated polio vaccine.
The exact cause of PPS is unknown but it is thought to be due to the gradual loss of nerve cells in the spinal cord and brain that were damaged during the original polio infection or the long-term effects of the virus on the nervous system.
Symptoms of PPS include muscle weakness, fatigue, joint and muscle pain, cold intolerance, sleep problems, breathing problems, and muscle atrophy (shrinkage of muscle tissue). In some cases, PPS can also cause emotional distress.
There is no cure for PPS but there are treatments that can help manage the symptoms. These treatments include physical therapy, occupational therapy, speech therapy, medications, and lifestyle changes.
The number of polio survivors who develop PPS varies widely, but it is estimated that up to 80% of polio survivors will eventually develop the condition. It is important to note that not everyone who had polio will develop PPS; however, it is important to be aware of the potential for developing the condition and to take steps to manage it.