Urinary bladder diverticulum

Dr Ian Bickle et al.

Bladder diverticulum are outpouchings from the bladder wall, whereby mucosa herniates through the bladder wall. They may be solitary or multiple in nature and can very considerably in size.

There are two peaks - one at 10 years and the other at 60-70 years 2.

Diverticulae may be congenital (primary) or acquired (secondary) and a range of causes of urinary bladder diverticula are described.

Acquired diverticula are more common, usually occurring the context of a trabeculated bladder, resulting from chronic bladder outlet obstruction.

Radiographic appearance

Diverticula are often an incidental finding on imaging investigations, including ultrasound, CT, MRI and IVU.


They may be associated with a range of complications due to stasis and low-grade infection including:

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Article information

rID: 25906
System: Urogenital
Section: Gamuts
Synonyms or Alternate Spellings:
  • Bladder diverticulum
  • Urinary bladder diverticula
  • Urinary bladder diverticulae

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Cases and figures

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    IVU images shows ...
    Case 1: on IVU
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    Case 2: on CT
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    USG shows bladder...
    Case 3: on ultrasound
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    Case 4: from prostatomegaly
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    Case 5
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    Case 6: severe
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    Case 7: transitional cell cancer in a diverticulum
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