A cystostomy is a urinary diversion that does not affect the patient’s life expectancy, but can reduce quality of life. Cystostomy is a cystostomy done 2-3 cm above the pubic bone to divert urine outside the body to resolve urinary retention due to diseases such as lower urinary tract obstruction or difficult urination, mostly used for diseases such as prostatic hyperplasia, neurogenic bladder and urethral injury. Cystostomy does not affect the patient’s life expectancy, which is the same as normal, but it can affect their quality of life. If a patient has a cystostomy for urethral obstruction due to a malignant disease of the urinary system, the survival rate may be lower, but not due to the cystostomy itself. Patients with cystostomy are advised to take better care to prevent infection. The fistula tube should be changed once a month, the fistula opening needs to be disinfected daily, usually drink more water to promote urination, pay attention to the color of the urine and the amount of discharge, and properly fix the fistula tube and drainage bag.