携手共进,齐创精品工程
Thank You
世界触手可及
母体因素 ❖ 营养不良 ❖ 感染 ❖ 慢性衰弱性疾病 ❖ 内分泌异常 ❖ 创伤
❖ 生殖道因素
免疫因素 ❖ 自身免疫因素 ❖ 同种免疫因素
★ Abnormal products of conception Over 15% of fertilized ova do not divide 15% are lost before implantation (1st week of gest) 25% are lost during implantation (2nd week of gest) ★ About 60% of spontaneous abortions occurring
国家级精品课妇产科学课件流产
胚胎因素
数目异常、结构异常
母体因素
全身性疾病、内分泌异常、免疫 功能异常、生殖器异常、创伤 刺激
环境因素
烟草、饮酒、咖啡因、辐射、 避孕、环境毒素
60
53
50
40
36
30
20
10
5 0.6
0 人色体异常率(%)
妊娠前3个月 妊娠3-6个月 妊娠6-9个月 足月活产
pregnancy Negative pregnancy test or quantitative β-hCG
that is not properly increasing Adverse ultrasonic findings(eg, empty gestational
sac, fetal disorganization, lack of feon)
abortion)
难免流产(inevitable 习惯性流产(habitual