i had a circumcision two weeks ago because of phimosis, i wasn't able to retract my forskin at all and was because i wasn't able to retract my forskin i would get re-accuring yeast infections. The circumcision itself isn't painful it's everything else that is hard to deal with. No sleep for the first few days because you keep waking up each time you get an erection (it feels like your penis is being stretched) you can't wear pants for the first week it's just to uncomfortable, and then two weeks into my post surgery i guess blood came out of my hole and because of bacteria infection so now i am on antibiotics and there are still dried up scabs and stiches on my penis. ONLY GET A CIRCUMCISION IF YOU REALLY NEED ONE then and only then is it worth it.
Indeed, you should not go for circumcision unless there is no other way, and there usually is. With stretching exercises or at most a small incision to make some room, you should be fine.
More serious cases (phimosis) could require circumcision but even then, the procedure should be carefully applied taking care to do the minimum necessary damage.
THE LAST OPTION YOU WANT IS A CIRCUMCISION AS AN ADULT!!
you could get circumcised but just remember once it's gone you can't get it back.you could also try stretching exercises with topical steroids to make it looser or have a minor surgery called a z-plasty to fix it.here is more information.
http://www.cirp.org/library/treatment/phimosis/beauge/
http://www.glansie.com/
http://gfs.platigo.com/
http://www.cirp.org/library/treatment/phimosis/south1/