Hello and welcome to Healthcare Magic. Thanks for your query. I understand that you are concerned about your friend s sexual problems. From the description of your symptoms it appears that your friend is suffering from premature ejaculation. Now, there can be a variety of causes for this problem - both medical causes as well as psychological causes. In a majority of cases, the main cause is excessive anxiety. Now, the first and most important step in management of this problem is a proper evaluation. This will include a detailed medical, sexual, personal and social history, a thorough physical examination and certain investigations, as per the necessity. So, I would advise you to ask him to consult a Sexologist for a detailed evaluation and further treatment. Wish you all the best. Regards, Dr. Jonas Sundarakumar Consultant Psychiatrist