Abstract
It has been thousands of years since psychology has been researched, but with the clearer distinguishment and conception, there are still many debates and confusion between psychologists to be clarified. Fear, as one of the most common emotion of people, have anyone think about the cause for the chilling feeling for their difficulties in facing the situations or objects? There are much debate of what is the leading cause for the intense fear generated by people which is deemed as a disorder and needed experiences in the past to conclude and summarize. This article mainly talks about phobia anxiety disorder, including its symptoms, categories, diagnoses and treatments. The author would discuss on the cause for different types of phobia disorder and give conclusions based on some studies. In this article, the author is going to select three of the most common types of phobia, that are social phobia, agoraphobia and specific phobia, and analysis the cause for phobia. The author states in the conclusion that though most psychologists deem that causes for phobia would be conditioning due to past experiences, genetic relationships can also be part of the reasons for phobia. With different specific kind of phobia, the influence of genetic relationships would be clear as well. Through discovering the etiology, it may be more convenient for psychologists to identify cases of individuals and improve the efficiency of diagnosis of phobia disorders, which is also beneficial to the mental health of patients.