Evaluation of the factors related to the patients' complaints against medical staff, especially doctors and efforts towards its reduction affects patients' satisfaction of health care system.  The main purpose of the present study was to determine the factors related to the patient`s complaint against doctors with the verdict of Medical Council of Kerman.
This study was a descriptive, analytical and practical evaluation, assessing 250 documents related to the patients' complaints of doctors in Kerman Medical Council during 2004-2009.
 The most reasons of complaints (%73.2) were carelessness and disrespecting scientific and legal standards, and obtaining funds out of legal standards (%9.3) respectively. In the case of issuing vote, the most opinions (%31.7) were innocence and suspended and barred from prosecuting (%22.9) respectively. Most complaints were of ophthalmologists and private hospitals.  There were significant relationship between the reason of complaint and issued out (P<0.01, c²= 53.706) and the reason of complaints and field practitioners (P=0.026, c²= 49.27). No significant relationship between issued out and the type of hospital was found.
Regarding the results, respecting scientific, and legal standards, and decreasing financial relationships between doctors and patients is an effective way in reducing patients' complaints of physicians. Improvement in physicians' patients' relationship by explaining the disease condition, its risks and treatment options to patients are effective in reducing patient's complaint against physicians.