The condition starts from the toes and legs and spreads upward, affecting the muscle tissues of the entire body (including the internal organs), which gradually experience fibrosis. Sufferers slowly lose strength and eventually experience paralysis or death from organ failure. The medical community has not developed any drug to treat the condition.
這種疾病會從腳趾、腿部向上蔓延，使全身的肌肉組織（包括器官）逐漸纖維化，愈來愈無力，最後導致癱瘓或器官衰竭而亡，醫學界迄今仍無藥可醫。