The main sequelae of cystostomy are infection, reduced bladder capacity and bladder tumor. 1. Infection: the surgical method of cystostomy is to make a channel through the skin above the pubic bone directly to the inside of the bladder, which is an invasive operation, and it is still easy to cause infection if the fistula is prolonged and not properly cared for. 2. Smaller bladder capacity: when long-term fistula, urine flows out of the fistula, without the contraction of the bladder muscle, and urine will not be retained in the bladder, the bladder does not play a stimulating role, in the long run, the capacity of the bladder may become smaller. 3. Bladder tumors: Long-term stimulation of the fistula tube in the bladder leads to bladder damage and may increase the risk of bladder tumors. If you have any discomfort after cystostomy, please go to the hospital in time and get regular treatment under the doctor’s guidance.