It's usually over some extremely important issue, like who gets to use the red Lego TM piece. Please, I beg you, give me some ideas to put an end to this bickering. When our children fight, it not only grates on our nerves, it tugs on our hearts. Keep a level head and view your kids' arguments in a realistic way. The fight over the red Lego TM , as intense as it may seem, will be over and forgotten by the time one of them realizes he needs a blue one.
Kids fight for lots of reasons.
They fight because they don't want to share, because they want parental attention, because they each have a differing view about what's fair, or simply because they have to share the same space, day after day after day. The vast majority of sibling battles are not destructive to the relationship between the children. All this considered, there are ways to survive sibling fighting. And there are ways to reduce the number of fights, and the severity of them, as well. Kids will fight longer, louder and with more enthusiasm when they have an audience.