Hemodialysis is a very common method to treat the patients suffering from renal failure.Statistics shows about 600 persons under hemodialysis treatment in Shiraz.Chronic diseases lead to limitation in physical activities and change in patients body proportionality.

The Research is an analytic and descriptive study. The sample of research include 72 person:that 24 person of them are between 12-18 and under Hemodialysis treatment and who Reffered to Hemodialysis center of Namazi hospital. Also 48 healthy persons 12-18 years old (24 girls and 24 boys) had been choosen randomely from shiraz schools during one month. The data's was Gathering by (standard test of Tennesy) to determine self concept of adolescent.

Age and sex had no influence on concept points statistically, but on the other hand, compairing healthy and patient subjects were meaningful in different ages and same sex range statistically.The latter matter confirms the the research hypothesis indicating that chronic disease has negative influence on self –concept and the influence is more obvious than other factors such as juvenile education, his(her) parents education, family income, years of the

The present reaserch shows that the juvenile who was under hemodialysis treatment had a self-concept point less than healthy one and there was a meaningful differences between them(p<0.001) .