Urinary catheter leakage may be caused by factors such as leakage at the structure of the urinary catheter and leakage at the mouth of the urinary catheter, which are treated in different ways for different reasons, as follows. 1. Urinary catheter leakage at the structure: (1) Model and quality: inappropriate model, inappropriate choice of interface size. Problems with the quality of the urinary catheter can lead to urine leakage. Urinary leakage can be solved by choosing the right model and changing the tube. (2) blocking cap is not removed: bladder irrigation with a needle piercing the site of leakage, urinary catheter and urine bag connector between the blocking cap is not removed. The blocking cap can be removed, and the problem of urine leakage can be solved by not using a needle to puncture the bladder. 2. Urinary catheter leakage: the cause of leakage may be caused by the air bag is too small, urinary tract irritation and other factors. (1) The gas bag is too small: sodium chloride can be injected into the gas bag to dissolve, so that the gas bag is embedded in the bladder, to avoid dislodging the urethra, and to reduce the leakage of urine. (2) urinary tract irritation: patients with urinary catheter after urinary tract irritation symptoms are obvious, there is urinary stimulation urinary frequency urinary urgency urinary pain feeling, resulting in leakage. To drink more water and urinate more, you can take sodium bicarbonate, sodium bicarbonate has the effect of alkalizing urine, which can relieve the pain of urination. Insertion of urinary catheter should pay attention to the operation process and operation techniques to reduce the risk of urine leakage.