Post polio syndrome is difficult to diagnose because it progresses very slowly, and is stable for long periods. It's hard to figure out which muscle and nerve deficits are old and which are new. A neurological exam and lab tests can exclude other problems. These would include electromyography and nerve conduction velocity studies. The long term effects differ from person to person.
Muscles become progressively weaker over time.
The severity of the muscle weakness varies. As people develop more symptoms, they may have depression , anxiety , or lowered self-esteem. Support groups, medication, or counseling may help. Physical therapy can help people learn how to exercise properly and conserve energy. Post polio syndrome is not contagious, so there are no risks to others.