Hi, I'm am 21 years old and I just had hernia surgery on my right side. Two days after my surgery, I awoke to the bottom of my penis, the part closest to my body, had a discoloration. It looked like the skin was thinner and was blood colored. After a day or so, it slightly faded, but my scrotum began to have the same color in the middle of it right in between my testicles. What could this be? Anything relating to the surgery?