The nurse is assessing a patient's mouth and notes white, milk curd-appearing plaques attached to ...

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Thrush is characterized by white, milk curd-appearing plaques that are attached to the oral mucosa. Canker sores can appear as ulcers 0.5 to 2 cm in diameter on surfaces that are not attached to bone, such as the tongue, gums, or inner lining of the cheeks and lips. Cold sores (fever blisters) are most commonly found at the junction of the mucous membrane and the skin of the lips or nostrils, although they can occur inside the mouth, especially affecting the gums and roof of the mouth. Mucositis is a general term used to describe a painful inflammation of the mucous membranes of the mouth.