Background: Oral submucous fibrosis is a chronic, insidious oral mucosal condition affecting the most parts of the oral cavity with high malignant transformation rate triggered by areca nut chewing, nutritional deficiencies, immunologic processes, and genetic predisposition. It is precancerous disorder and transforms into a malignant tumour in 1.5-15% of all cases. OSMF causes significant haematological abnormalities resulting in anaemia and a decrease in serum iron levels.