Collagen Injection

This is an endoscopic procedure to correct stress urinary incontinence due to urethral sphincter weakness. Bovine-treated collagen is injected into the proximal urethra to bulk the area and prevent urine leak during physical strain. It is done under sedation or general anaesthesia at a day case and takes 15 mins to do. Because collagen is a biodegradable product, repeat injections may be needed every 3 to 6 months.

Complications include:

  • bloody urine. This can last a few days.
  • difficulty passing urine. This is due to the swelling around the bladder neck and should resolve by a week.
  • urinary retention. If this happens, a catheter will need to be inserted for a few days.

Desired outcomes:

  • no clot retention
  • no urinary retention ( < 1 % occurrence )
  • no stress leak for 3 months