© 2021 American Society of PeriAnesthesia NursesPurpose: This study was conducted in order to determine the factors that affected the early mobilization after surgery of patients who had undergone knee and hip arthroplasty. Design: This study is descriptive correlational. Methods: The study population consists patients who met the inclusion criteria and were hospitalized in a State Hospital Orthopedics and Traumatology Clinic in Turkey in order have the knee or hip arthroplasty surgery between the dates of November 7, 2017 and September 21, 2018. While selecting the sample, the purposive sampling method was used. The sample consists of 60 patients who were in the universe of the study, who meet the inclusion criteria and who voluntarily agreed to participate in the study. Findings: The mean time of the first mobilization of the patients was 19 (9.15-72) hours. There were statistically significant relationships between mobilization time and age, gender, marital status, body mass index, past surgical history, chronic pain, blood transfusion before surgery, medical diagnosis, surgical procedure, bone cement usage, the score for American society of Anesthesiologists, surgical intervention time, post-operation nutrition, and defecation time. Conclusion: The early mobilization time of the great majority of the patients who underwent knee and hip arthroplasty was in conformity with the enhanced recovery after surgery protocol.