Some good-natured ribbing and teasing is inevitable between siblings. It's part of growing up and often does not have a negative impact on relationships between siblings. However, when that teasing becomes mean, it is time for parents to intervene. Excessive or mean-spirited sibling teasing can have a long-term effect on the emotional and mental well-being of a child.
Lowered Self-Esteem
Constant teasing can have a negative impact on a child's self-esteem. If your child constantly faces teasing from her sibling, whether it's about her grades in school, her appearance or her athletic ability, she might start believing what she's hearing. As a result, her self-esteem is lowered, and that lower self-esteem can have an impact on her daily life. If her brother always tells her she's stupid, she might be hesitant to raise her hand and answer a question in school, for example.
Competitiveness
Sibling teasing can heighten the competitive streak in all children involved. If both brothers play basketball and one doesn't score as many points as the other, the higher-scoring brother might tease him about it. This can inspire the brother to boost his game to best his brother. While a little bit of competition is healthy, a competitive streak that develops in response to sibling teasing is not.
Damaged Relationships
Sibling teasing can have a long-term impact on the relationships between siblings. Years of excessive and mean-spirited teasing can damage sibling relationships. Rather than socializing with their siblings, victims of teasing will avoid interaction with them to avoid teasing. This distance can ruin a relationship between siblings, and the teased sibling can hold a grudge for a lifetime.
Separation From Family
Children who are constantly teased might grow distant from their family as a whole. They might dislike their siblings for teasing them and fault their parents for not stepping in to stop the teasing. When they grow up and move out of the family home, a lifelong victim of teasing might not make an effort to maintain a relationship with their siblings -- and perhaps even their parents. Thus, teasing can impact long-term family dynamics.


