Metachromatic Leukodystrophy (MLD) is a rare neurodegenerative disorder. It causes demyelination of the brain, causing motor and developmental regression, seizures, deafness, blindness, dementia, and can lead to death. We extracted data from evaluations and reports of 71 MLD patients who were evaluated at the Program for the Study of Neurodevelopment in Rare Disorders between 2000 and 2012 -- focusing specifically on adaptive behavior and motor abilities.