What is the outlook for Machado-Joseph Disease ?
The severity of the disease is related to the age of onset, with earlier onset associated with more severe forms of the disease. Symptoms can begin any time between early adolescence and about 70 years of age. MJD is a progressive disease, meaning that symptoms get worse with time. Life expectancy ranges from the mid-thirties for those with severe forms of MJD to a normal life expectancy for those with mild forms. The cause of death for those who die early is often aspiration pneumonia.