What makes you think you've ruptured your urethra? This doesn't happen very often, and you'd likely have blood or other signs of trauma. If you have these signs, this is a medical emergency, and you need to see a doctor immediately.
Future issues depend on the location of the injury and the solution to it.
Seriously, though, if you think you have trauma to your urethra, I can't stress enough that you need to see a doctor.