If you still have pain after a few days of urinary catheterization, it is possible that the swelling has not subsided, and it is also possible that the pain is caused by secondary infection. 1. swelling has not subsided: if the insertion of the urinary catheter for a longer period of time, urinary catheter stimulation will cause congestion and swelling of the urethral mucosa, pulling out the urinary catheter for a few days and still have pain symptoms, it is possible that the swelling has not subsided, by drinking more water to promote metabolism, most of them will be recovered on their own. 2. secondary infection: urethral stimulation may cause secondary bacterial infection caused by urethritis can also cause, pulling out the urethra a few days and still pain, may also be accompanied by frequent urination, urinary urgency, urinary abnormalities and other symptoms. You should drink more water to check the urine routine, if there is a substantial bacterial infection, you can take ofloxacin and other antibiotics to treat. If the pain is still there after a few days of urinary catheter extraction, there may be other reasons, it is recommended to actively seek medical advice, under the guidance of a professional physician for diagnosis and treatment. The above drugs need to be used under the guidance of a professional physician, to avoid blind use of drugs, so as not to aggravate the condition.