Why do men cheat on thier women?

Because they lack discipline, love, decency and loyalty and are bastards, but there are many men who don't cheat and are the opposite of this. It counts the same to both parties.

We cheat for different reasons, the wife or girlfriend isn't having sex anymore, she pissed you off, the relationship is rocky, he was drunk, but the main reason is we like variety I mean don't get me wrong having a wife or girlfriend is cool and fun but then some sexy little number comes along, knows that your in relationship, and then she gets really flirtacious and then you fall into her seduction, its not that we are out to cheat it just happens sometimes, and the weird thing is its widely accepted if a man cheats but if a woman cheats then guy break up with her, weird I know. I cheated once not on purpose there a sexy girl and I was at party at my girlfriends house at the time, and she went to sleep and well she left me alone with this girl who literally jumped on me and started to make out with full knowing that I had a girlfriend.

Guys just want to get laid. If you take it down to the biological level, then think of it this way---men are eager to spread their seeds wherever they go, while women try to protect themselves from getting fertilized, cause in the end, they will be the ones germinating the seed for 9 months. Anyway, as the other person said, women do the same, so if you know why women cheat, then you will know why men cheat---with the added bonus of knowing that a lot of men, just want sex, and they see women as sex objects, so many men don't care about their actions. They just want to keep on piling their body count cause in society, when you're with your fellow male friends, the more you've conquered, the more manly and 'studlier' you are; women on the other hand----well you already know; the higher the body count, the sluttier they are, and no woman wants to be called a slut. Thus, lots of reasons out there as to why men cheat!

Many reasons:

1. Something you don't fulfill in his life sexually or emotionally.
2. Guys are pieces of Sh! T. Yes, a lot of us are, not all, but most.
3. It's hard for a guy to say no to sex, especially she is hot.
4. Drugs & Alcohol ( it not a good excuse, but it's an excuse)
5. Bad morals

That is just some examples. You know him better than we do. Are you doing something wrong? Been nagging? Always negative about things? Just ask yourself why he would cheat on you? Is it something your doing wrong? Or h's just a piece of crap dude? I hope this helped a little

Same reason women cheat on men. They're selfish, they only care about themselves. They are into quick pleasure as opposed to long term joy. They will hurt anyone or anything to feel good. They care more about getting off then they do about love.

Cheating is not specific to men.
People cheat because perhaps it's just in their nature. Perhaps they get bored. Perhaps they're always looking for "the next best thing". Perhaps it's just about sex.

Being devoted to one person is hard, it's turning away others, it's perhaps denying some desires.
I have never cheated but there are definitely times when I thought maybe.

Guys are the horniest beasts on the planet. Ahaha, don't let it get to you, all they want is sex. If they're faithful, they won't. But every guy goes through it, it's natural.

Confused.
not ready for a real relationship.
childish.
selfish
and not happy.
most people cheat for a quick fix or for something they are not being supplied with at home! Some cheat to feel dominate and well balanced. It really depends on the guy.