when i was about 13 i fell off my bike and hit the back of my head very hard on cement?

[McFly in 2015]

im 26 now and can feel a slight bump on the back of my head im not just now noticing the bump its been there for a long time im not 100% sure if it was from the accident i wasnt unconsious when i hit it but i hit it very hard do you think ill be fine or should i have an x ray done by a doctor

 

[wow]

go to the doctor just in case it might be something bad, like cancer or something. I BET ITS NOT! but if it's been there a really long time and hasn't grown then it could just be nothing.

if you can move it around just a little, and it feels like a ball of fluid it might just be a sist (cist)? (i don't know how to spell it) and you can get it removed.