When I was 14, I had an inguinal hernia on my left side repaired via surgery. At the time, the doctor told me I had about a 90% chance of developing the same thing on the other side, at some point in my life.
Well, fast forward to this morning while showering, when I noticed a small bulge forming in the exact mirrored position-- both vertically and horizontally-- to where the incision was from the previous surgery.
It could also be lymphoma, but I don't have even a single other symptom, other than slow peeing, which I already know is caused by a slightly enlarged prostate-- common at my age.
Given my history, I suspect I'm imminently due for another trip to the surgeon's table for a second hernia patch-up.