What is Pistanthrophobia? We would have seen some people around us who feel lonely even in the crowd. Have you ever think, why they do it, let's see why people do this. Whenever a person does this, he may be facing of pistanthrophobia. There may be many reason to behind aloneness, fist reason is relationship and trust, it must be in a relationship but sometimes a couple got break-up then this Pistanthrophobia enter in their life.