Bhuyan says, and there really isn't much you can do about that. 'Sometimes, it actually just happens by chance,' Dr. Obviously, there's nothing you can do about that, but the situation could be made worse if you aren't using the right lubrication, or if there isn't a sufficient amount of lube. Bhuyan, it's usually due to friction, which is an issue because sex is like.80% friction when you think about it. Condoms aren't perfect ( they aren't even 100% effective), so yes, sometimes they break.