Problem maintainig an erection

Patient: When my girl and I get into the act of having sex i am hard but once the intercourse starts and i get close to cumming i go limp.its really frustrating and my girl is begining to think im not attracted to her.what could be causeing this problem,please help

Doctor: Your porblem is not unique. There are many young men who suffer from similar erectile issues. Most importantly do not de spair. Most erectile dysfunction issues result from psychological factors, however, a physical disease affecting the penis must first be ruled out. It is best to talk to physician with whom you are comfortable so that he/she may examine you as well. Once a physical disease has been ruled out there are a number of techniques that can be employed to help you work though this issue.