Depictions of killing, bestiality, human sacrifice also go way back. Just because it's been done before doesn't mean it's a good idea to do it again.

Our bodies function even if we don't specifically force it to. Wet dreams relieve sexual tension naturally. Doing it on purpose with a hand or a partner or a partners hand is physically no different. There is stimulation and orgasm in both men and women.

While some organizations may not condone auto-erotica, condoms, bungee jumping or bicycle riding, that objection doesn't make it a "sin" according to the Bible. Off the top of my head I don't know any other religious material that uses the word sin so I have to assume you mean religions that use the Bible as their source for information.

If you go by one definition of sin, "missing the mark" (and don't turn it into a bad joke), then it's possible that for one person (not necessarily all) focusing on masturbation is definitely missing the point of that particular bodily function.

It is my personal opinion and experience that doing it alone is very different from doing it with someone. I think an extended period of time not sharing that process with another person could change how I think and feel under normal circumstances. And anything done to excess isn't healthy, even drinking too much water.

So is it a sin to spend my life alone, masturbating to fantasies and not sharing my life and needs with another human being? That's a personal question, not one that is true for everyone. Does the Bible say don't jerk off? To some it does. Is it a sin? I don't see it in the 10 Commandments.

Everyone is at a different place in their relationship with God. For me it would be a sin to drink fermented wine (as opposed to fresh wine, aka juice) but not for you. For me it might be a sin to swear, but not you. Depending on where you are in your religious walk a more comprehensive study is required to determine what is right for you and it is a personal thing, not subject to scrutiny by others.

Since it is never another humans job to judge another human where sin is concerned, it would never be appropriate for one person to accuse another of sin under any circumstances. The 10 Commandments is clearly written for all to follow and people are having enough trouble with that! Let's leave the rest for God to sort out with the individual and not go out of our way to create rules just to assuage our own conscience or inflict our personal convictions on others.

No

No I do not think there is any explicit doctrine or dogma in religious thinking contending the deed or the utterance of the word, or any other terminology conveying the same meaning, to be sinful by yourself or with another whether in Christianity or contrary to Shariah Law in Islam or contradicting morality in Buddhism or any other Faith?.

Indeed I understand people who for religious reasons need to be celibate can and do help themselves to comply by just that method when alone, so it might even be contended that the deed and word is in keeping with "good and Godly" practices.

But the "thought" during practicing the act may in many cases be verging on or penetrating well within sinful territory particularly as the initiation of the arousal most usually involves pornography, and particularly so if "the thought" is centered on some extremely wrong behaviour, like paedophilia or sadistic rape, which can in very rare cases be in the mind of the practitioner. But if the doing it in a fantasy world when alone.in the bed in the real world really does suppress or kill the urge to act out such a fantasy up and about in the real world, then it could be deemed a worthy escape mechanism from any such evil malevolent behaviour and so the very antithesis of sin. However if doing it motivates a desire to act out such a fantasy in the real world that would be quite another matter, though my information is the former is more likely to be the situation than the latter with such people.

Doing it in my experience can also have other beneficial effects on decent normal individuals' lives. I have spent much of my working life at sea and know only too well the temptation that seafarers have to try to come to terms with on long voyages far from home not to be unfaithful to their wife or girl friend back home can be hard for some young males to resist. In so many ports all over the world, ships call at, prostitution is rather too readily available to be enjoyed on shore leave with seafarer wages being a valuable asset for the ladies to lure. But the seafarer who instead of availing himself of that opportunity, enjoys his sex life all by himself with a delivery of seaman's semen ending up on his bottom sheet of his cabin bunk eather than in the vagina of a real lady, and perhaps triggered with a picture of his wife made use of as stimulant, has surely carried out the very antithesis of sin?

For people at home doing it can also serve another need in helping prevent over population
of the world and the harmful repercussions of such for mankind, without depriving the people of their gratification.

Another beneficial effect that has recently come to light from medical research in Australia is that males who frequently indulge in the practice as young adults in their twenties or thirties are statistically proved to be far less likely to contract prostate cancer when they are older than are men who indulge in the practice of frequent sexual intercourse of similar magnitude or else men who abstain or are asexual. Does this perhaps provide further evidence that the practice of sexual gratification through masturbation is indeed a gift from God to help us be more healthy and not to commit sin? So I submit after due consideration of the evidence, the answer to your question is in almost all cases a NO.

It depends on what religion you are. Some religions consider it a sin because the "seed" is wasted when you come to orgasm without a partner. Other religions believe it's an acceptable alternative to having sex outside of an approved marriage.