年轻人脑出血，尤其20岁以下的，一半有脑血管异常，年长的高血压控制不良是最重要风险因子

http://stroke.ahajournals.org/content/30/3/537

ORIGINAL CONTRIBUTIONS

Intracerebral Hemorrhage in Young People

Analysis of Risk Factors, Location, Causes, and Prognosis