Catheter with urine does not enter the urine bag may be too little water or urinary catheter folding caused by, can be self-treatment does not need to call the 120 emergency telephone. If the catheter is blocked or catheter dislodgement caused by the catheter with urine does not enter the urine bag, need to seek medical treatment, if the patient’s condition is serious, then call 120 emergency telephone. If there is urine in the catheter caused by low water intake, but the urine does not enter the urine bag can be improved by drinking more water, and there is no need to call the 120 emergency number. For the catheter folding caused by the catheter inside the urine, but the urine does not flow into the urine bag, then you need to organize the catheter to keep the catheter open, at this time also can not call the 120 emergency telephone. For patients with catheter blockage, it is necessary to inject saline into the urinary catheter to flush the catheter. If flushing the catheter is ineffective, the catheter needs to be replaced. Since flushing the catheter, replacing the catheter, and repositioning the catheter are specialized medical operations, and are not to be performed by oneself, it is recommended that the patient go to the hospital to find a medical professional to handle the situation. It is recommended that patients appear catheter urine but urine does not flow into the urine bag does not necessarily need to call the 120 emergency telephone, the patient needs to check whether the catheter is smooth or dislodged, blocked. For catheter dislodgement or blockage, and serious condition of the patient can call 120 emergency telephone.