正常人由于疾病,事故或先天性缺陷,可产生心理、生理和解剖结构或功能方面的异常或丧失,这是一种残缺现象。由于残缺所造成的劳动能力严重下降或丧失,以致不能从事正常人所进行的活动,称为伤残。伤残人的不利条件是伤残对本人带来的文化、社会、经济、环境方面的障碍。 Normal people due to illness, accident or congenital defects, can produce psychological, physical and anatomical structures or functional abnormalities or loss, which is a flawed phenomenon. As a result of incomplete due to a serious decline in ability to work or lost, so that normal activities can not be carried out, known as disability. Disadvantaged people’s disadvantageous conditions are the cultural, social, economic and environmental obstacles that they cause to themselves.