<s>[INST] hi doctor . when i was 15 years old one of my friend told me to mastrubats. and i did it for certain time . than on the ere of self relezation i stoped doing it. during the period i used to mastrubate i did not had that month problem . as soon as i stopped.it started as usuall.but now i m about to get marriade and i have a doubt in my  mind that will i be able to reproduce ?do answer my question? [/INST] Hello, Masturbation is normal, natural and never unhealthy if you do it moderately and without giving much pressure. You can masturbate three times a week, and it is in fact healthy. Therefore, there is no need to worry. There are no such chances that you will not be able to become a father just because you were masturbating in your teenage. Hope I have answered your query. Let me know if I can assist you further.  </s>