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尿道综合征的常见病因

尿道综合征的常见病因

  造成女性尿道综合征的原因中既具有刺激因素,又具有感染因素,可以是机械性、化学性或过敏性等因素的作用,甚至还与尿道或周围的某些影响休戚相关,所以是一种错综复杂的综合因素在作怪。

  1.泌尿系统感染:

  患者尿道口组织的病理改变均为慢性炎症反应,多数患者尿培养可能阳性,46%为大肠埃希菌,18%为衣原体,厌氧菌培养可增加阳性发现,32%患者病因不确切。

  2.尿道外口解剖异常:

  如尿道处女膜融合,处女膜伞,小阴唇融合等,有报道,尿道外口至阴道口距离与尿道综合征关系密切,间距越近患病率越高,间距在3mm以下者患病率达72.15%。

  3.尿道梗阻:

  如膀胱颈梗阻,尿道远端周围组织纤维化或括约肌痉挛导致远端尿道缩窄。

  4.神经功能异常:

  损伤,感染,X线照射等引起尿道内纤维组织增生,使神经发生异常反射。

  5.心理因素:

  如紧张焦虑,多疑及内向等心理状态是尿道综合征的易感因素。

  6.其他:

  如免疫因素,雌激素水平下降,镁离子缺乏,医源性因素等。平时常穿紧身尼龙内裤的女性,由于外阴部透气性和吸湿性不好,以及运动时外阴与尼龙裤产生摩擦,同样会刺激局部而引起尿道综合征。此外,情绪波动,如生气、悲伤、急躁等,也可诱发或加重尿道综合征。

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