<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hello sir i am santos of 21 yrs male and i m masturbating since 9 yrs and now after having sex i come to know that i have extreme problem of sighrapatan so sir please suggest me any cheap medicine so that my problem can be solved.I have performed sex 8 to 10 times. There is no any effect. Of viagra so please help i have tried all the ways. I cant. Pay ur fee. I m financially week  <response>: Degree understand your concerns went through your details. Premature ejaculation is caused mainly due to psychological problems. Premature ejaculation may be caused by stress, performance-related anxiety and other relationship issues. It can also be caused by hypersensitivity of the skin of the penis. You are just 21 and therefore, I suspect psychological reasons. You could have sexual performance anxiety and because of that you are unable to have normal sex with your partner. I suggest you to consult a psychologist for counseling. Take care. If you require more of my help in this aspect, please use this URL. Make sure that you include every minute details possible. Hope this answers your query. Available for further clarifications. Good luck. 