Why do people cut?

So.... Why do people cut?

We all  have problems. But some people can't handle the emotional pain. So they cut.

Why though? Based from experience, people cut because they think that physical pain is better than emotional pain.

When they cut, it feels like they're punishing themselves for the mistake they've done to receive the emotional/mental pain.

They cut because they're angry at themselves for not being perfect. They feel that that they will never be good  enough.

When people are bullied, the let the words that the bull says get to them so they cut. Sometimes when you hear people describing you as ugly, fat, slut (sorry for the term), loser and many more, you start to believe them. 

They blame themselves for all the mistakes and problems. They think that they're not worth it. That no one will ever love them.