The bladder pacemaker is the common name for sacral nerve modulation. It is believed that in the near future it will be as popular as cardiac pacemakers, and its minimally invasive, reversible and adjustable advantages will bring the latest treatment options to the majority of patients in China. Sacral nerve modulation is suitable for patients with abnormal urination caused by dysfunction of bladder, urethral sphincter and pelvic floor muscle reflexes and who are not effective in general non-invasive treatment. The main indications are urge incontinence and overactive bladder disorder. oab (overactive bladder disorder) is usually defined as a manifestation of urinary frequency and urgency with or without urinary incontinence, with frequent daytime and nocturnal urination excluding local or metabolic factors. In patients with chronic urinary retention sacral neuromodulation is indicated in the absence of urethral obstruction. Other conditions such as Fowler’s syndrome and pelvic floor muscle spasm syndrome can also be treated with sacral neuromodulation. Pelvic pain syndrome is characterized by persistent pain, intermittent recurrent pelvic pain accompanied by dysfunction of the lower urinary tract, sexual organs, small bowel or gynecology without significant organic damage. Chronic pelvic pain is defined as pain in the pelvic region without a clear cause for more than 6 months, and such patients can be considered for sacral neuromodulation therapy if medication is not effective.