How to figure out why can't my boyfriend sustain an erection?

Ideas: If he can't sustain an erection with his favorite "adult" images or fantasies -- and he may or may not tell you -- he needs to get with his physician. Hemochromatosis and prolactinoma are only two possible concerns. Otherwise, agree that for two weeks you will not attempt intercourse but work on finding other ways to give each other physical ; emotional pleasure. Explore well ; problem self-cures.