So sibling rivalry usually continues throughout childhood and can be very disappointing and intense for both children and parents. Parents often take care of their children by arguing and arguing. Therefore, sibling rivalry is often a big problem in families, which should be solved with different solutions such as attending a parenting teacher course, organizing attention, or avoiding taking sides. Every person who has a sister or brother faces problems like sibling rivalry. At the same time, not only children but also parents contribute to disputes. But what is sibling rivalry? The Cambridge Dictionary (1956) refers to the phrase “sibling rivalry” as a jealous dispute in families having more than one child. In this case parents and children both facilitate the rivalry. In addition, there is a number of reasons why daily fights between children occur. For example, parental love and attention are the main causes of sibling rivalry. Rachel Tyler, MD, a developmental behavioral pediatrician at UCLА Mattel Children's Hospital, suggests that most parents give more time, love, and care to the younger child because they believe the older one