Female catheters can generally be worn for up to 4 weeks, but clinically they are usually changed every 2 weeks. Female catheters should not be worn for more than a maximum of 4 weeks, after which the catheter may become clogged, deteriorate, crystallize stones, deposit or become infected. Leaving a catheter in place may increase the risk of urinary tract infections, as well as the risk of infection as the number of days the catheter is left in place increases. Although catheters can be inserted for up to 4 weeks, clinically they are usually replaced with a new one after 2 weeks. It is important to take care of the catheter in your daily life and disinfect the urethra regularly to prevent urinary tract infection. If there is catheter blockage, obstruction, cloudy urine, flocculent precipitation or urethral dilatation, pain, increased secretion and other discomforts, the catheter should be replaced at any time, and the drainage bag needs to be replaced every 1 week during routine wearing of the catheter. It is recommended to use the catheter reasonably according to the doctor’s advice, once there is any discomfort to seek medical treatment.