A procedure exceeding 3-4 hours may require a catheter. Often the anaesthesiologist if skilled will minimize the fluids given to prevent the need for this. It is possible to have an in-and-out catheter at the end of the case to empty the bladder if it seems like there may be a need. Otherwise it does not need to be used.Dr Rodger ShorttOakville Plastic SurgeonAssistant Clinical Professor &Director of Cosmetic Surgery Training,McMaster University
Mommy makeover : breast and tummy , the use of cathetersThis will depend on the time of surgery. Generally over four hours will require either an indwelling catheter or temporary placement