Are you trolling? Seriously, a lump could be A LOT of things... Cancer, genital herpies, warts, mouth ulcer and the list goes on for a long time. Why don't you look the symptoms up on google - so that web MD can give you some fake answer.
Go to your doctor and make sure you're not a camel! But really, some more information would help all of us help you.
Trying to be helpful this time: It could be an enlarged lymph node, which can happen when you have an infection. I had one last year.
It's obvious troll if the fool didn't want the risk of death from cancer he would of been to a GP by now.