People engage in edge play for many reasons. It could be as a personal test of endurance as in the case of extended impact play (i.e., flogging, caning or whipping). It could also be a way of getting a more intense experience such as through strong pain play, humiliation or mind fucks.
The risks involved can include:
- Physical harm - broken bones, torn ligaments, concussion, soft-tissue damage, etc., from heavy impacts or from being dropped,
- Psychological harm - distress, trauma, terror, neurosis and psychosis in response to intense humiliation, role play, play rape, etc.
- Medical problems - suffocation (from breath play), various infections (hepatitis, HIV, etc., through broken skin and/or sharing of bodily fluids), burns (from fire play or temperature play), coma (from ice play enemas), loss of blood (from cutting), etc.