Intermittent (Short-Term) Catheters
Intermittent catheters are fine hollow tubes inserted into the bladder to drain away urine. Some people only need to use a catheter on occasion. Short-term, or intermittent, catheters are removed after the flow of urine has stopped. Intermittent catheterization is recommended to obtain a sterile urine specimen, to relieve urinary retention, for urologic surgery or surgery on contiguous structures, for critically ill patients requiring accurate measurement of intake and output, and for temporary obstruction of the bladder opening due to injury.