Yes once it's heeled u can masurbate very successfully but the heeling process can vary for different guys and the stiches if the dissolving ones can take a few weeks to fall out. So u might need patience because believe me u don't want a hard on with the stiches still in painful is not the word plus it can leave permanent marks not for me thank god. And also when masurbating after it heeled i found that lube was needed more and that i had to change my technique to compensate for lack of a foreskin. U should have seen the sights i was going into while researching circumcision but i wanted to know all the facts about it before going ahead. Now on the other matter a circumcision doesn't add or lessen the length of the penis that's a whole different procedure that i can't answer or thankfully don't need to worry about well so i've been told anyway