Oral mucosal lesions are a common occurrence and very often dentists are called upon to see such patients. Among many causes trauma is one of the leading for oral mucosal diseases. Oral traumatic lesions are diverse in which some present as acute lesions while the majority are chronic lesions. Clinical presentation of traumatic lesions vary significantly and most of the occasions the cause and the effect can be established with thorough history and clinical examination. Although, biopsy of such lesions are not required in most of the occasions some may warrant histological investigations to exclude conditions which clinically mimic traumatic lesions.