he most common oral lesions are erythematous. It will be from benign reactive or immunologically-mediated disorders to malignant diseases. Red patches of the oral mucosa constitute an important group of disorders arising from a diverse spectrum of conditions ranging from traumatic lesions, infectious diseases, systemic and local immune-mediated lesions, to potentially malignant disorders or a neoplasm. Oral erythroplakia is considered a rare potential malignant lesion of the oral cavity. Most red oral lesions are associated with inflammation. Some are potentially malignant, especially erythroplakia

Keywords : Erythematous, Potentially Malignant, Oral Erythroplakia, Hemangioma, Vascular.