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Diagramatic representation of mucosal erosion (left), excoriation (center), and ulceration (right) Simplistic representation of the life cycle of mouth ulcers. An ulcer (/ ˈ ʌ l s ər /; from Latin ulcus, "ulcer, sore") [2] is a break in the skin or mucous membrane with loss of surface tissue and the disintegration and necrosis of epithelial tissue. [3]
A stress ulcer is a single or multiple mucosal defect usually caused by physiological (not psychological) stress which can become complicated by upper gastrointestinal bleeding. These ulcers can be caused by shock, sepsis, trauma or other conditions and are found in patients with chronic illnesses. These ulcers are a significant issue in ...
Panic attack. Panic attacks are sudden periods of intense fear and discomfort that may include palpitations, sweating, chest pain or chest discomfort, shortness of breath, trembling, dizziness, numbness, confusion, or a feeling of impending doom or of losing control. [1][2][7] Typically, symptoms reach a peak within ten minutes of onset, and ...
Some people with aphthous stomatitis may show herpes virus within the epithelium of the mucosa, but without any productive infection. In some persons, attacks of ulceration occur at the same time as asymptomatic viral shedding and elevated viral titres. [6] In some instances, recurrent mouth ulcers may be a manifestation of an allergic reaction ...
Anxiety is closely related to fear, [3] which is a response to a real or perceived immediate threat (fight-or-flight response); anxiety involves the expectation of a future threat including dread. [7] People facing anxiety may withdraw from situations which have provoked anxiety in the past. [8]
Anxiety disorders affect nearly 30% of adults at some point in their lives, with an estimated 4% of the global population currently experiencing an anxiety disorder. However, anxiety disorders are treatable, and a number of effective treatments are available. [11] Most people are able to lead normal, productive lives with some form of treatment ...
Dental fear, or dentophobia, is a normal emotional reaction to one or more specific threatening stimuli in the dental situation. [ 1 ][ 2 ] However, dental anxiety is indicative of a state of apprehension that something dreadful is going to happen in relation to dental treatment, and it is usually coupled with a sense of losing control. [ 1 ]
Noma (also known as gangrenous stomatitis or cancrum oris) is a rapidly-progressive and often-fatal gangrenous infection of the mouth and face. Noma usually begins as an ulcer on gums and rapidly spreads into the jawbone, cheek, and soft tissues of the face. This is followed by death of the facial tissues and fatal sepsis.