Tattling on brothers and sisters and hating a new sibling from the first day he invades the family are just two examples of how sibling rivalry wreaks havoc on family relationships. Fights among siblings are one of the most common sources of family friction. Because preschoolers are constantly flapping their wings of independence and importance, they often fight with their siblings for space, time and the number one position in their most important world: their family. Though sibling rivalry is part of human nature, its frequency can be decreased by showing each of your preschoolers that they both are special. Most parents believe their children should get along just because they born into the same family. In fact, the children may be born into the same household, but they are not born into the family. E.g. A first child has the exclusive attention of his parents for a period of time. The second child is born into a family that already has a child. Parents grow and develop just as children grow and develop. Therefore, it is true that just because children are siblings doesn’t mean they were born into the same situation.
To prevent this problem: In any household with more than one child, some type of sibling battle is a daily occurrence. Though we need to accept that all brothers and sisters fight, we don’t have to condone it. There are many things parents can do to help to prevent or diminish this problem:
Make your child prepare for the new baby arrival: Discuss with your first child how she’ll be included in the life of the new baby. Tell her about the new family routine will be and how she’ll be expected to help out. This will help her understand that she’s an important part of loving and caring for her younger sister or brother.
Make sure you play with your older child whether your baby is asleep or awake: This will prevent your older child from concluding that you only give her attention when baby is out of sight. If you spend the time with your older child even when your baby is awake, make her think that she will get the mum’s attention when the  baby’s here as well as gone and also make her realize that the baby is not bad after all.
Don’t expect tenderness as you do for the baby from the older child: Be realistic about the fact that your older child may be older than the baby, but she still needs lots of individual attention. So don’t expect your child to smother the new baby with the tender attitude.
Give separate plan time to each of your children: This will help focus your attention on each child’s needs, and it will keep you informed about feelings and problems that may not surface amid the roar of the crowd at home.
Not to make any response to tattling: Children tattle on each other as a way of enhancing their position with their parents. Stop this game of one-upmanship, and by pretending that the tattling didn’t occur.
To solve this problem: When your children are fighting for your undivided attention, let the timer determine each child’s turn. This teaches your children about sharing and it lets each child know she’ll have a turn being your number one object of attention. Also, allowing fighting to flare up and burn out of control doesn’t teach your children how to get along. Instead of allowing battles to be fought, give your children a choice. Let them get in the habit of making choices, to give them a feeling of control over their lives and to help them learn to make decisions on their own. Children can’t live in the same home without some rivalry going on. It’s human nature. Keep friction to a minimum by rewarding getting along and by not allowing the rivalry to escalate to fighting. When children become physically combative, however, you need to intervene. Time away from each other is the most logical consequence of this type of behavior. So try to avoid this thing to happen among your kids.

Because we love and care for our children, we expect they will love and care for each other. They do, but they don’t always express it. As much as possible, ignore your children’s disagreements. They really are their problems, not yours. Keep in mind that you will have to stay out of your children’s disputes. Let them learn to solve their problems themselves.