Transcutaneous Tibial Nerve Stimulation for Urgency Urinary Incontinence

Inclusion Criteria: * ≥ 6 episodes urgency incontinence on 3-day voiding diary * Duration of symptoms ≥ 3 months * Off antimuscarinic or 3-adrenoreceptor agonist therapy for 2 weeks * No known neurologic disease * Ability to complete home sessions and clinic follow up * Ability to complete voiding diaries * Internet access and proficiency * English or Spanish-speaking Exclusion Criteria: * Pregnant * Known or suspected urinary retention * Symptomatic urinary tract infection unresolved at the time of randomization * Recurrent urinary tract infection (≥ 3/12 months) * Bladder pain syndrome * Known or suspected advanced (stage III or IV) pelvic organ prolapse * Neurogenic bladder * Current or prior bladder malignancy * Current or previous use of bladder Botox injections, percutaneous tibial nerve stimulation, or sacral neuromodulation * Pacemaker or other implantable device * Disease affecting lower extremities * Bilateral metallic lower limb implant * Incarceration