###Human: I am not able to penetrate vagina due to insufficient erection. Please help. ###Assistant: Hi. I have read your problems carefully. After getting above mentioned history, my assumption is that your problem is psychological rather than organic. But I need some information and investigation reports to confirm it further. If you want to visit any physician, I advise to consult with endocrinologist first and after excluding organic disease, you need a psychiatrist. Masturbation and doing sex are different issues. In the case of masturbation, we try to ejaculate as soon as possible. But in case of doing sex, we try to do sex as long as possible. So there is a psychological issue. Besides this, anxiety also can precipitate this problem. So after doing some investigation and excluding organic cause, I think you need some psychological counseling.