I have a problem where I can't cum during sex. I can have the most underful sex and still not cum.
How ever if I masterbate I can cum. I am worried about it....what could I try. Could it be worth going to see the Doctor about it?
Thanks for the advice.
If you're able to orgasm while masturbating, the problem is very likely not biological or anatomical, but psychological. There probably is some element of performance anxiety here that's playing out differently than how it normally does for a man: by erectile dysfunction. I had ED for several years and even once I was with a patient and loving woman and got some nice roomy TheyFit condoms, it took me at least two months of sex before I finally climaxed with her.
Just be patient with yourself and try to find other ways to reach orgasm with your partner, whether it be orally, or manually, or even if you jerk yourself off with her. Make yourself comfortable with the "idea" of climaxing with a partner and eventually it should become second nature.
(BTW -- if you're using condoms that are too tight, that can really choke off your sensitivity. Could also be part of the reason.)