Hi it could be a build up of smegma can you retract the foreskin?
Bro, consult a doctor. Its strange thing. It can be extra growth, not sure though.
Don't think so.
OK if you can't retract the foreskin to clean the glans every day some time smegma can build up this usually happens with guys who have phimosis. In any case you need to visit your GP and have things checked out properly they will advise you on the best course of action to treat it.