Minimally invasive prostate surgery may cause urethral edema after removal of the tube. If improper operation or excessive force is used in the process of removing the urinary catheter, the mucous membrane of the urinary tract, which is originally fragile, may be damaged due to the stimulation of the urinary catheter. The damage to the mucous membrane of the urinary tract may cause symptoms of congestion and edema. In addition, prolonged and repeated friction of the urethra during surgery may cause irritation of the urethra, thus leading to increased irritation during insertion and removal of the catheter may also cause urethral edema. Urethral edema belongs to one of the common complications after minimally invasive prostate surgery, patients drink more water, urinate more, avoid spicy and stimulating food to improve the symptoms. In summary, minimally invasive prostate surgery can cause urethral edema after extubation, it is recommended that patients do not need to worry too much, usually after rest or treatment can relieve the symptoms.