Patients with T2D in Bangladesh have limited knowledge on the causes, risk factors and management strategies of diabetes. The professional health education and care in a tertiary diabetic hospital do not appear to enhance knowledge on diabetes substantially. Our data also show that, there is a weak relationship between knowledge, duration of diabetes and glycemic control. Therefore, traditional diabetes education might not be sufficient to control diabetes. Innovative strategies should be identi-fied and adopted to further to improve the quality of diabetes education to make it more effective. The study also underscores the need for further research to identify other critical factors enhancing glycemic control.