In urge incontinence, which advanced therapies may be used if conservative measures fail?

• A. Antibiotics
• B. Surgical urine diversion
• C. Dialysis
• D. Botulinum toxin injections or nerve stimulation procedures

Answer: (D)

When urge incontinence doesn’t respond to conservative measures, therapies that directly address detrusor overactivity or bladder signaling are used. Botulinum toxin injections into the detrusor muscle reduce its overactivity by blocking acetylcholine release, which increases bladder capacity and lowers the number of leakage episodes. Nerve stimulation procedures, such as sacral neuromodulation or tibial nerve stimulation, modulate the neural pathways controlling bladder activity, helping to decrease urgency and incontinence in patients who don’t respond to medications or have intolerable side effects. The other options don’t target the underlying bladders’ overactivity: antibiotics treat infections, dialysis is for kidney failure, and surgical urine diversion is a drastic, less common option for specific severe conditions, not the typical next step for urge incontinence after conservative measures fail.