I most cases no, but people who masturbate very often (more then 3-4 times a day) have been known to experience eye floaters, loss of sex drive/stamina, and depression. As a basic rule, as long as it's not keeping you from doing well at work/school or being social or what not, it's probably not a problem.
Woah, woah! Almost every religion considers masturbation as a "sin." but you should also consider that about 98% of all men have masturbated at some point in their life and that 95% of all men do so on atleast a somewhat regular basis. Do you really think that 98% of all men are going to hell?!
Well, christian is obviously a born again christian. Evangelic and probably not very smart, he does what he church tells him to do - no problem there, he just doesnt get to masturbate and will probably end up being sexually confused later on in his life. But about the post, it depends on the day. Sometimes I masturbate 1-2 times, and sometimes its like 3-4? And of course, there a days when I dont at all, either because I cant for some reason or I just dont feel like it. Do it as often as you want, pal.
Did any of you stop to think that when you masturbate, you ejaculate semen and that semen consists of minerals (such as zinc and selenium) and protein among other things. Its not a waste product but rather a precious fluid your body has worked hard to produce. Thats why many religions say not to waste the seed (meaning semen).
In any case, whether you chose to masturbate or not, I think diet is very important. If you have a terrible diet and dont get enough nutrients and masturbate yourself like crazy, you are practically castrating yourself....