ABSTRACT Background: One of the primary risk factors for the beginning and development of chronic problems in type 2 diabetes mellitus is hypertension (DM). Aim and objectives: The aim of this study was early detection of BP abnormalities in people with type 2 diabetes mellitus over the course of 24 hours. Subjects and methods: The present study was carried out on 135 patients who presented to Cardiology Department at Zagazig University Hospitals and Cardiology Department at Matrtouh Cardiac Center in the duration between Janurary 2021 and Augest 2022. The patients were classified into three groups according to blood pressure dipping. Group 1 (Non-dippers): (n= 65), group 2 (dippers) included 53 cases and group 3 reversed dippers (n= 17). Results: Significant positive correlation was detected between ratio of BP dipping and height (r=0.209, p-value =0.015) as well as night BP (r=0.287, p-value =0.001) while there was significant negative correlation between ratio of BP dipping and TG (r=-0.217, p-value =0.011) as well as day BP (r=-0.363, p-value <0.001), Conclusion: Insightful information is provided by the study on the prevalence of aberrant ABP patterns and the limits of office blood pressure readings for either diagnosing hypertension or evaluating blood pressure control in people with type 2 diabetes.