Botox Bladder Injections

Urge incontinence from overactive bladder
Botox injected at multiple sites

Botox can be injected into the bladder muscle to treat refractory cases of overactive bladder or urge incontinence that do not respond to medication. A total of 100U to 200U of Botulinum toxin A is injected into the inner wall of the bladder to paralyze the muscle. The effect can be seen as early as 2 weeks after injection. The procedure is done under general anesthesia as a day case and takes less than 15 minutes to do. Success rates are around 70 to 80% but the effect is temporary and usually lasts 6 to 9 months. Repeat injections may then be needed.

Complications include:

  • bloody urine. This lasts a few days
  • retention of urine.¬†This may require temporary self-catheterisation for up to 1month.