Treatment of hemorrhoids is divided by the cause of symptoms, into internal and external treatments. Accurately classifying a patient's symptoms and the relation of the symptoms to internal and external hemorrhoids is important.
Note also that the average life expectancy after being diagnosed with Parkinson's is about 9 years -- hence, those who participated were already at this point at the beginning of the study.
Parkinson's disease (PD) is not fatal, but it can reduce longevity. The disease progresses more quickly in older patients, and may lead to severe incapacity within 10 - 20 years. Older patients also tend to have freezing and greater declines in mental function and daily functioning than younger people.