Updated April 16, 2014
Written or reviewed by a board-certified physician. See About.com's Medical Review Board.
Disuse atrophy can be caused by immobility, such as an arm being in a cast for a long period of time. It can also occur to some degree if a person stops performing their usual activities, such as walking.
Disuse atrophy can be a side effect of a neuropathic pain condition.
©2014 About.com. All rights reserved.