Internet Forums Increase Self-Harm Among Teens

A study following 2,000 Victorian teenagers from 1992 to 2008 found that one in 12 reported they had self-harmed between the ages 14 and 19. The study was published in the Lancet as part of an ongoing project exploring self-harm among young people. Matt Cardy/Getty Images

Dean, a 14-year-old girl, has a 3-inch by 8-inch scar on her hip.

It’s usually numb with nerve damage but when pressed, it sometimes flares up with shooting pain. Every time the weather gets warm enough to go to the beach, it makes her feel embarrassed.