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1骨质疏松症的定义和危险因素是什么?骨质疏松症(osteoprosis,OP)是一种以骨量低下,骨微结构损坏,导致骨脆性增加,易发生骨折为特征的全身性骨病。骨质疏松症包括原发性和继发性两大类。原发性骨质疏松症又分为绝经后骨质疏松症(Ⅰ型)、老年性骨质疏松症(Ⅱ型)和特发性骨质疏松症(包括青少年型)三种。继发性骨质疏松症指由任何影响骨代谢的疾病和(或)药物导致的骨质疏松。骨质疏松症的危险因素包括固有因素和非固
What is the definition and risk factors of osteoporosis? Osteoporosis (OP) is a type of osteopathic bone disease characterized by low bone mass, damaged bone micro-structure, increased bone fragility and fracture-prone . Osteoporosis includes two major categories of primary and secondary. Primary osteoporosis is divided into three types of postmenopausal osteoporosis (type Ⅰ), senile osteoporosis (type Ⅱ) and idiopathic osteoporosis (including adolescent type). Secondary osteoporosis refers to osteoporosis caused by any disease and / or drug that affects bone metabolism. Risk factors for osteoporosis include intrinsic factors and non-fixation