<s>[INST] hello doctor i am nitesh. before i used to masturbate a lot. n now a days my pennis does not stand properly and even it does not stand for a long time. just a minute as such. so please tell me what should i do in this case. is this because i masturbate lot or any other physical problem. please advise me. n i am thinkin lot abt it. [/INST] Hi,You shouldn't think about this, Looking at your description it seems to be a treatable condition so you need not to worry at all. Here, I would a like further information for better assessment of the condition like your age. Do you smoke or drink? Is there history of any other disease like diabetes or high blood or thyroid/ liver disease. Excessive indulgence in to masturbation may cause weakness and fatigue, mostly it doesn't affect erection.In my opinion you should take Sildenafil or Tadanafil group of drugs for 4-5 days under medical supervision, if you are married to regain your confidence. Please write back to me with all the details I have asked for so that I will be able to tell you more precisely.Hope I have answered your query. Let me know if I can assist you further. Best wishes,Dr. B R Hudda </s>