Abstract: Objective To understand the status of instant messaging overload,job reshaping behavior,and occupational burnout among obstetric and gynecological nurses,and to explore the impact of instant messaging overload and job reshaping behavior on occupational burnout. Methods From January to February 2024,a simple random sampling method was used to survey the obstetrics and gynecology nurses in 8 comprehensive hospitals in Wuhan using the instant messaging overload scale,job reshaping load scale,and occupational burnout load scale. Results The instant messaging overload score of obstetrics and gynecology nurses was （18.42±3.84）points,job reshaping score was （82.40±10.34）points,and occupational burnout score was （60.18±9.37）points. Obstetrics and gynecology nurses' instant messaging overload,job reshaping,and occupational burnout were related to age,working years,professional title,monthly income,and number of night shifts per month（all P<0.05）. There was a positive correlation between instant messaging overload and occupational burnout among obstetric and gynecological nurses（r=0.622,P<0.01）,a negative correlation between job reshaping and occupational burnout（r=-0.596,P<0.01）,and a negative correlation between instant messaging overload and job reshaping（r=-0.572,P<0.01）. Job reshaping of obstetric and gynecological nurses partially mediated the relationship between instant messaging overload and occupational burnout,with a mediation effect of 0.276,accounting for 48.25% of the total effect. Conclusion Instant communication overload and job reshaping among obstetrics and gynecology nurses are closely related to occupational burnout. Job reshaping plays a partial mediating role between instant communication overload and occupational burnout. Reducing instant communication overload and improving job reshaping levels are beneficial for reducing occupational burnout levels.

Key words: Obstetrics and gynecology nurse, Instant messaging overload, Job reshaping, Occupational burnout, Influence factor