<s>[INST] hi ,this is xxx ,i get a good erection 1st time when i masterbate ,i manage to masterbate for a long ,but once i ejaculate i does not get erection ,it took me a very long time (12 hour) or sometime dont get erection, why ,am i have problem related to sex, plz let me know i will i get erected within 1 hour [/INST] Thanks for asking in healthcaremagic forumIn short: Visit psychiatristExplanation: Kegel exercise may help you. Search for kegel exercise on net. Or else visit a psychiatrist for counselling and investigation. Till then do not worry , be happy.Good luck. </s>