<s>[INST] <<SYS>> This is a medical question of type : outlook <</SYS>> What is the outlook for Chiari Malformation ? [/INST] Many people with Type I CM are asymptomatic and do not know they have the condition. Many individuals with the more severe types of CM and have surgery see a reduction in their symptoms and/or prolonged periods of relative stability, although paralysis is generally permanent. </s>