worried about an odd sack-like bump under foreskin...

Ok I'm not circumcised and while me and my girlfriend have sex, sometimes the skin goes back beneath the lump of the head. Its not painful but after we finish i notice that while the skin is behind the head, under the foreskin there is this small sack-like "thing" that connects to the head sorta. It doesnt hurt, burn, itch or anything....its just there. And sometimes after sex it swells slightly but still no pains. Im not sure if its something big but im concerned. Someone please help....

[Dave0017]

also while my skin is behind the head, i notice white stuff behind the skin, is this something i should be worried about or am i just not cleaning it good enough??

[franky666]

the white stuff sounds likes it just smegma all u need 2 do is pullur 4skind back and clean it all,wen u shower or bath.
hey i hav a lump similar this but mine is more 2 the side which is provin a nightmare as after i masturbate it seems 2 swell up on the end of my foreskin,had it 4 the past 2weeks after i masturbated 4 a while,it looks kinda like a knot under the skin? any1 hav any advice or any idea of what it is? i am not sexually active at the moment so its not a sti,really freakin me out, it feels quite hard 2 and looks like 1 of the little veins that run down 2 it has been somehow knotted,like a scar,how could this happen? any advice on any of this would be appreciated,thanks alot,