A total of 215 TB patients were included in this study. The prevalence of DM among TB patients was found to be 23.7% (2.8% known and 97.2% new cases). Significant associations were found between age (>46 years old), educational status, smoking habits, alcohol consumption, and physical activity Conclusion: Routine screening for DM is mandatory due to its increasing prevalence, which may help in early diagnosis and reduce complications by proper management, in turn helping in the successful outcome of TB treatment.