background Constipation is a troubling condition that can happen to anyone, but it has much concern in patients with limited physical mobility as patient with orthopedic disorder. Aim of the study was To evaluate the efficacy of Murdoch bowel protocol on constipation among patients with hip and pelvic surgery Study design: was Quasi-experimental. Setting: The study conducted in Tanta International Teaching Hospital. Subjects: The sample included 80 patients who were adults (21-60 years), conscious and newly admitted to orthopedic department. Tools: Three tools were enrolled in the study for data collection: Tool (I) patients' sociodemographic sheet and health relevant data ", Tool II: Bristol Stool Form Scale. Tool III: Constipation Assessment Scale. Results: shows that the majority of patients 86.4% in study group and three quarters 75% of control group patients had constipation at the beginning of the study but at the end of study period after application of Murdoch bowel protocol only 11.1 %of study group had constipation compared to less than three quarters of control group patient. Conclusion: The Murdoch bowel protocol had great effect in prevention and management of constipation for patients with hip or pelvic surgery with a highly statistically significant difference between study and control group through period of the study as P value =0.000*. Recommendation: implementation of Murdoch bowel protocol for all orthopedic patients in orthopedic department for assessment and management of constipation.