2 doctors weighed in:
Why are some teen girls so mean?
2 doctors weighed in

Dr. Ed Friedlander
Pathology
In brief: Because they can be
People must learn how to be nice.
A group of girls will bond together by being cruel to someone who is different; teenaged men do the same. It's an unpleasant fact of life; the only upside is that, say, a fat girl who's ridiculed may decide to get serious about weight loss, or a bullied boy may develop athletic / fighting skills that end it and give him enjoyment. Be a good example yourself.

In brief: Because they can be
People must learn how to be nice.
A group of girls will bond together by being cruel to someone who is different; teenaged men do the same. It's an unpleasant fact of life; the only upside is that, say, a fat girl who's ridiculed may decide to get serious about weight loss, or a bullied boy may develop athletic / fighting skills that end it and give him enjoyment. Be a good example yourself.
Dr. Ed Friedlander
Dr. Ed Friedlander
Thank
1 comment
Dr. Kathryn Seifert
There are also teen girls that are mean that have very serious problems and therapy is needed. If everyday education of a girl to have better interpersonal skills is not effective, an evaluation by a psychologist or psychiatrist may be in order.
Read more answers from doctors