<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi. My penis is like a small kid. And cannot maintain erection for more than 5 sec. I don t drink or smoke. And don t have habit of too much masturbation. What is wrong with me. I am too much worried about it and now always feel headache thinking about it and my future life.  <response>: Hello dear, Thank you for your question. Erectile dysfunction ED is a common problem that affects the life of many men. It is of crucial importance that you understand, that not every problem with erection, is necessarily a definitive case of ED. Factors that can cause the problem you have been experiencing may include the following:1- Conditions like: Diabetes, High Blood Pressure etc. 2- Psychological circumstances like: stress, anxiety, extended use of pornograpChatDoctoraterials etc.3- Certain Chat Doctor. 