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Background and Objective: Zinc is one of the micronutrient with many roles in health, especially among the growing children. It has been thought that Zinc deficiency cause diarrhea, and Zinc supplementation can prevent it in children. Materials and Methods: This study was carried out to determine the effect of Zinc sulphat on 4-24 month old children dirrahea. This clinical trial study was done double blind, the sample were study 4-24 month old afflicted with acute diarrhea in pediatric ward of Besat Hospital in Sanandaj, Iran during 2006. The sample size was 40 and mached by Blocks Randomization. The children in case group (intervention) received Zinc sulfate (9mg/kg/day) during ten days. In the Control groups they there given distilled water instead. The data was analyzed, using t-test and manwitney test. Results: During ten days of monitoring there was not significant differences between two groups. Duration of diarrhea in case and control groups was 5.72±3.15 and 5.32±2.58 days respectivley this diffence was not significant. Conclusion: This study showed that Zinc sulfate has no benefit on acute diarrhea in childhood

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Background and Objective: Trauma is the third cause of death and the main cause of disability in Iran. Children are more susceptible to trauma due to physiological conditions and the growth process. This study was done to evaluate the epidemiolog of pediatric trauma in Hamedan, Iran during 2016-2017.

Methods: This descriptive-analytical study was done on 482 traumatic children (330 boys, 152 girls) at the age of 0 to 14 years whom referred to Besat Hospital in Hamedan, Iran during April 2016 to March 2017. Age, gender, season, type of troma and the outcome of trouma were recorded for each subject.

Results: The highest rate of trauma was observed between the ages of 7-14 years old (40.5%). The rate of trauma was significantly higher in boys than the girls (P<0.05). The most rate of trauma occured in summer (36.9%). The most common, place, cause, type, region of traumas were home (44%), falling down (53%), fracture (35%), and region (41%) respectively. Regarding the subsequence of discharge of subjects, 10 deaths and 42 disabilities after trauma were observed.

Conclusion: Regarding the most common type and place of accidents, providing safety at home and knowledge of parents are nesscery for preventing of pediatric teruma in Iran.