Absenteeism is Absenteeism is a problem of all worldwide and difficult to find a solution. This research aimed to identify factors that contribute to absenteeism among. Nurses at Omdurman Teaching Hospital. Methods: This is descriptive cross sectional, hospital based studycarried in omdurman teaching hospital which include 91 nurses. randomly selected systemic randomize Data were collected via what's up and the questionnaire focused on the characteristics of the nurse, manager, work environment, and organization in order to identify factors that contribute to nurses ‘absenteeism. Results: Regarding the character of nurses toward absenteeism, 46(50%) suffered from sickness, and this important factor in absenteeism, showed, 64(70.3%) showed that they did not like the autocratic style of the nurse manager and also the nurse's workload half of them reported it as large extend affect the absentees on other hand. Unfair promotion opportunities most important factor affecting absenteeism, 53(58.2%).A significant relationship between gender and years of experience and absentees p value .000. to the nursing workforce so that nurses will conclusion and recommendation: From the results researcher conclude that negative association between several risk factors (socio-economic, demographic, and health-related). One recommendation for further research would be for a job related study to be conducted.