Urinary retention is a very common phenomenon, which is mainly caused by bladder outlet obstruction. For patients with urinary retention, the symptoms can be alleviated by indwelling catheter. For some precautions of urinary retention catheter, there are generally the following points: First, patients must operate gently when indwelling catheter, especially male patients, Since the urethra is long, the indwelling catheter should not be forced too hard to avoid damage to the urethral mucosa. In addition, if the catheter is inserted successfully, the amount of urine discharged for the first time is generally about 300ml. If the amount of urine discharged for the first time is too large, it is easy to cause excessive relaxation of the bladder bladder muscle, resulting in a series of complications such as hematuria. Therefore, attention must be paid to the operation. In addition, attention must be paid to aseptic operation in the process of indwelling catheter.
