Health encyclopaedia 健康百科全书

Health encyclopaedia - Alphabetical Topic List健康百科全书-按字母顺序排列的主题清单

Why should it be done?为什么要它做什么？ of Urinary catheterization对导尿

If you cannot empty your bladder normally, urine continues to build up there.  This creates pressure on the bladder which can become very uncomfortable.  It also puts pressure on the valves that normally control the flow of urine from the kidneys down into the bladder.如果您无法清空膀胱一般情况下，尿液中继续建立。这造成的压力，膀胱，这可以成为非常不舒服，而且还可以把压力对阀，通常控制流的尿液由肾脏进入膀胱。

The main danger if the normal flow of urine is blocked is that the pressure will force it back through the valves and up the tubes leading from the kidneys to the bladder (the ureters).  This is known as vesicoureteric reflux and it can cause kidney infections.主要危险，如果正常流动的尿液是封锁的是，压力会迫使它回到通过阀门及管领导从肾脏到膀胱（输尿管） ，这是被称为膀胱输尿管返流和它能够引起肾脏感染。

In some cases where the blockage is caused by and enlarged prostate gland, the man may choose to catheterize himself rather than undergo prostate surgery.在某些情况下，淤塞是造成和扩大的前列腺，该名男子可能会选择catheterize自己，而不是接受前列腺手术。

• Ulcerative colitis 溃疡性结肠炎 Ultrasound scan 超声波扫描 Urinary catheterization 导尿 Urinary tract infection 尿路感染 Uveitis 葡萄膜炎

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