It is important to understand the meaning behind what drives people to self-harm. Without understanding it is easy to unfairly judge these individuals which can make them feel ashamed and can cause the self-harm to worsen. An article on nami.org explains what self-harm is, why people self-harm, and treatment options for people who self-harm. The article states that self-harm is used as a coping mechanism for intense emotional pain.
There are so many different reasons as to what can cause someone to harm themselves. It is important to keep in mind that you are not the only one!