Background: Diabetes mellitus (DM) is a longstanding metabolic disease which is associated with high blood sugar levels and has affected millions of people throughout the world. If screened early and managed appropriately, one can be able to limit the long-term effects that include coronary artery disease, nerve damage, and kidney disease respectively. Objectives: This research shall seek to develop a comprehensive assessment of the long-term behavioral impact of early intervention to diabetic patients with reference to glycemic control and complication reductions in comparison with usual care. Study design: A retrospective cohort study Methods: The undertaken sample comprised 150 patients with diagnosed diabetes Mellitus; their impairment; average age – 50 (SD = 10 years old). The patients’ condition was then judged according to blood glucose regulation, medication compliance, and comorbidities. To compare data, independent t-tests were used and regarding categorical variables chi-square tests were used. Results: In as much as the gender distribution was almost equal, the mean age of patients was 50 years with standard deviation of 10. Early intervention patients had significantly improved glycemic control and less health complications in terms of HbA1c level of 6. 5% as compared to 7. 8 % at p = 0. 03. The complications rate in the early intervention group was 10% compared to 25% of the control group at the 2/3rd of the study follow up (p = 0. 02). Conclusion: Aggressive early diabetes management leads to a better control of blood glucose levels as well as the prevention of dangers of complications. Management plans should therefore hinge on early diagnosis, change habit and compliance to the usage of anticoagulants.