Although there is growing interest in human health and psychological factors efficiency in chronic pains, specially in lowback pain, there has been limited studies of psychopathological aspects, such as somatization, interpersonality sensitivity, hostility and … with pain threshold. Pain is a affective, complex and cognitive phenomenon, which is highly common in a variety of medical conditions, and debilitate normal life. By the reason, the main aim of this study is to measure the relation of psychopathological variables, consistent with demographic factors with pain threshold and tolerance.

By multi stage sampeling of Tehran central branch of I.A university, 50 subjects (25 female, 25 male) in the age range of 22-26 years old, have selected. After testing by specific scales and electrical pain threshold-tolerance, (TENS), data analized by two-way analysis of variance.

There is statistical significant relation in pain and psychopathological variables.

This study consistently showed that not only personality characteristics, but also psychopathological aspects, specially anxiety, depression and hostality have relation with pain threshold and tolerance.