摘要:The present study has been conducted aiming at investigating the relationship between job stress and the prevalence of psychosomatic disorders symptoms in ICU nurses in 2011-2012. Methods : This was a descriptive cross sectional study. The study population consisted of all nurses working in critical care units (CCU, ICU, emergency service department, surgery, etc), on morning, evening and night work shifts in Tehran Milad Hospital who were enrolled in the study using census sampling method. The sample size was 160 nurses (95 female and 65 male).Data were collected through self-administered questionnaires. Results: 70% of nurses had severe stress, 8.2 had mild and 21.8 had moderate stress.The most common psychosomatic disorders were respectively shoulder and back pain, headaches, joints pain, arthritis, loss of appetite, stomach or peptic ulcer, constipation, hypertension, chest pain, diarrhea, intestinal ulcers disorders, rheumatism, nausea and vomiting. Moreover, a direct and significant relationship was observed between stress and psychosomatic disorders innurses. Conclusion: One of the ways to control the onset and recurrence of psychosomatic disorders is to control the workplace psychological pressures. Preventive measures such as modifying or correcting the mental - social environment of workplace and teaching stress reduction techniques can reduce the morbidity resulting from psychosomatic disorders.