Lowering the urinary catheter also means using a catheter. Hernia surgery in general does not require the use of a catheter; in the case of older people with other underlying conditions, this requires the use of a catheter. 1. The situation that does not need to use a catheter: hernia surgery for adults and children is a routine surgery, the operation is relatively simple, the operation process is generally relatively short, most of the cases do not need to insert a urinary catheter. 2. need to use a catheter: for example, the elderly themselves have prostate hyperplasia, poor urination, this situation for hernia surgery, usually need to use a catheter. Hernia surgery should go to a regular hospital for treatment, the specific need to use a catheter, you should follow the doctor’s advice to decide.