Paranoid schizophrenia is a type of mental disorder which causes people to have strange thoughts, beliefs, and behaviors. People with this disorder may have trouble seeing the difference between reality and their own thoughts, which can make them scared of things around them. They may also have trouble with social interactions, find it harder to cope with everyday life, and may hear voices in their head that seem real to them. People who have paranoid schizophrenia need professional help to manage their symptoms and get better.