If you know someone who’s difficult and causes a lot of conflict in your life, you may be dealing with a toxic person. These people can create lots of stress and unpleasantness for you and others, not to mention emotional or even physical pain.

A toxic person is anyone whose behavior adds negativity and upset to your life. Many times, people who are toxic are dealing with their own stresses and traumas. To do this, they act in ways that don’t present them in the best light and usually upset others along the way.