Pneumaturia is the passage of gas or "air" in urine. This may be seen or described as "bubbles in the urine".

Emphysematous cystitis in computertomography


A common cause of pneumaturia is colovesical fistula (communication between the colon and bladder). These may occur as a complication of diverticular disease.

Other key differentials:

Male scuba divers utilizing condom catheters or female divers using a She-p external catching device for their dry suits are also susceptible to pneumaturia.[1]


Diagnosis is made by patient history of passing air or a sputtering urine stream. CT scans may show air in the urinary bladder or bladder walls.


  1. Harris, Richard (December 2009). "Genitourinary infection and barotrauma as complications of 'P-valve' use in drysuit divers". Diving and Hyperbaric Medicine. 39 (4): 210–2. PMID 22752741. Retrieved 2013-04-04.

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