Hi, a few weeks ago i noticed my scrotum was unusually tight. So i pulled on it a bit to kinda loosen it up. While i was doing this i decided to examine myself since im already there. I felt a small BB sized bump on my left testicle close to where the tube thing starts (sperms transporter). When i squeeze it or put some pressure on it, it closely resembles getting kicked in the nads. When i stop squeezing it the pain fades rather quickly. This bump isnt hard but then again, its not soft.

I fear this might be cancer since its not free floating around, i can move it maybe, 1/4 cm at most.