Introduction: Glycated Haemoglobin (HbA1c) has evolved into one of the most essential tools for the diagnosis and followup of Diabetes Mellitus (DM). Discordance between plasma glucose and HbA1c is being observed, especially in individuals diagnosed with prediabetes. Different types of anaemia, such as iron deficiency, haemolytic, and megaloblastic anaemia, can affect HbA1c results. Aim: To study the effect of erythrocyte indices on the levels of HbA1c, particularly in situations where HbA1c lev