I have broken many bones in my life. It seems like it wouldnt be painful because the bones don't have pain receptors but damage to tissues and nerves around it cause pain.
That's a shame, I've never broken a bone before.
then properly termed a pathologic fracture.
Signs and symptoms.
Although bone tissue itself contains no nociceptors, bone fracture is painful for several reasons:
- Breaking in the continuity of the periosteum, with or without similar discontinuity in endosteum, as both contain multiple pain receptors.
- Edema and hematoma of nearby soft tissues caused by ruptured bone marrow evokes pressure pain.
- Involuntary muscle spasms trying to hold bone fragments in place.
Damage to adjacent structures such as nerves, muscles or blood vessels, spinal
other psychoactive drugs can also lead to urinary retention and constipation thus leading to autonomic dysreflexia when in use over an extended period of time. 
Causes Pain.
Current scientific literature suggests that noxious (painful) stimuli are the primary initiators of AD. (Note: Not all noxious stimuli will cause AD. Some otherwise severe noxious stimuli in normal people, e.g. broken bones, may not result in AD, and may in fact even go unnoticed.) However, different studies have found that activation of pain receptors in muscle and