General anesthesia surgery is generally first anesthesia and then insert a urinary catheter to reduce the patient’s pain, but this depends on the situation, if the patient has preoperative urinary retention, urinary difficulties and other symptoms will be preoperative retention of urinary catheter. If the length of the operation is shorter, then generally do not need to leave a urinary catheter, to be awake after the patient to urinate on their own.
General anesthesia surgery catheter is very common perioperative preparation, because the patient in general anesthesia bladder often can not normal urination, so for the operation time for a long time patients need to stay after anesthesia urinary catheter to avoid overfilling of the bladder, on the other hand, can also be observed in the course of the operation of the amount of urine to help guide the calculation of rehydration volume.
General anesthesia surgery is the first insertion of a urinary catheter or anesthesia should be determined by the specific circumstances, general anesthesia surgery should be carried out in a regular hospital by a professional doctor to avoid delays.