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 the female divers utilizing She-p external catching device for their dry suits are also susceptible to pneumaturia.
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.