I am 20 years old and i used to masturbate a lot. my erections are weak even if i watch porn. i have been facingthis problem since last month. what is wrong with me?

Seek cause: Entertaining yourself wasn't the problem. Get with your physician to seek some organic cause of erectile dysfunction. Two causes that are common and get missed in men your age are hemochromatosis and pituitary prolactinoma. Arginine as a supplement could perhaps help. Good luck.

Psychological?: It may be psychological. Some men find that the need more and different types of stimulus to achieve a full erection, because they have gotten use to the old stimulus. You may need to talk with a psychologist or sex counselor. Stop the porn. Abstain from sex for a while. When you return to sex, start slowly, with a little bit of stimulus and stop, slowly work back to full sex.