Fear of meeting acquaintances may be the following psychological disorders: 1, the most common is the problem of depression, the main clinical manifestations of depression is depressed mood, happy not up, lack of interest, mental fatigue and exertion easily, while low self-esteem, self-blame, self-guilt, feel dragged down the family, attention, memory loss, pessimistic about the future, disappointment, serious time will have negative thoughts, this disease is easy to 2, may be the emergence of personality problems, such as paranoia or delusional disorder, these personality disorders patients are prone to tension with people, and even sensitive, paranoid, easy to appear afraid to see the performance of acquaintances, and in serious cases may suspect someone to harm themselves, and even suspect their relatives, friends 3. other mental illnesses may also occur, especially in childhood which may be a problem of autism. autistic children may not be interested in many people, and even behave particularly distant no matter if they are strangers or acquaintances. So whichever the case may be, it must be analyzed specifically.