In general, hospitals are not as safe as we assume (
1). From every 150 patients, one patient dies because of the incidents occurring during medical cares. Two-thirds of the hospital incidents are related to surgeries (
2). One patient in every 25 people undergoes surgery every year (
3) and its estimate that 312.9 millions of surgeries are annually performed all the world (
4,
5). The most complicated medical care is surgery and patients have the right to have a safe surgery (
6). Although surgeries are done to save the patients and improve the quality of their life's (
7), the probable complications of surgeries are considered as one of the major causes of death and disability in the world (
8). Estimations in industrial countries suggest that the death risk for the hospitalized patients who having surgery is 0.4 - 0.8% and the risk of the probable complications is 3 - 17% for them (
9-
11). In summary, at least one million patients annually die during the surgeries and 7 millions of patients injure by surgery complications. Several studies have reported that about 50% of the surgery complications can be prevented by proper performance (
12). Checklists and protocols are common tools for prevention of human error in challenging work environments (
12). In these recent years, professional organizations have increasingly suggested using of instructions for evaluation of preoperative processes (
8). In 2008, WHO proposed the surgical safety checklist to improve the surgical safety and decrease the death rates and surgery-related deaths (
13-
15). One of the key elements of risk management approach to create a safer environment in hospitals is using surgical safety checklist (
16). Safe surgery can save the patients 'life and facilitate the achievement of public health productivity (
17). According to the WHO estimation, application of this checklist can annually prevent 500000 deaths in the world (
12,
18). In spite of the mentioned advantages, the observance of surgical safety checklist has been reported at a low level (
19). Studies have suggested some instance of ignorance of these standards (
20). Stehaie Russ et al studied 5 hospitals in England, they reported that about one-thirds of the surgical safety checklist items hadn't been observed by surgical teams (
21). Observational studies have shown that surgical teams that accept this checklist are significantly different in terms of the observance of that and they don’t apply all of its items (
22).