I am a 14 year old boy from Canada. Being from Canada, I obviously love to play hockey . I got in a little bit of an injury while I was playing one day and my athletic cup pinched my right testicle. I didn't notice a little purple lump that I could see and feel through my scrotum until the next day. I didn't know what it was so I decided to wait it out thinking that it was nothing but a bruise from the incident the night before. It has been about 2 and a half months since the injury and the bump is still there. It has not changed in size or texture or anything and nor has my testicle. It hurts a little bit but only when it is touched or bothered in any way. I am beginning to wonder if it was just a coincidence that I noticed this bump after I got injured and if it is cancer. The questions I want answered are, how long would a bruise or pinch or some kind of injury like that last on my testicle, and how do I know if it is cancer (size, shape, texture, colour, other symptoms) I would like to know as soon a possible. Thank you!