The indwelling urinary catheter can be removed after the urine can be discharged on its own or after the gas is exhausted. The exact time of removal depends on the nature of the surgery, the individual’s recovery, and many other reasons to judge. If it is a general anesthesia surgery, the operation time is relatively long, usually need to leave a urinary catheter to avoid urinary retention, usually can be removed on the 2nd day after the operation, if it is an organ disease, the need to measure the precise amount of urine through the urinary catheter, the need for long-term retention of the urinary catheter, or the emergence of a serious hematuria situation, the need to leave a urinary catheter, to promote hematuria to recover more quickly, and after a good recovery, it can be pulled out. Drink more water, urinate more, flush the urethra, if you need long-term indwelling urinary catheter, timely urethral care, regular replacement of urinary catheter, to prevent infection, usually pay attention to the private hygiene, less spicy and stimulating food, eat more fresh fruits and vegetables, diet to light mainly. If you have any symptoms of physical discomfort, you should go to the hospital in time and consult your physician for guidance.