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Cases have risen dramatically over last decade, according to recent research
[1] [13] The underlying causes for this disease are extreme poverty, malnutrition, other causes of immunosuppression, underlying infections, and poor oral health. [1] The disease principally affects extremely impoverished and malnourished children between 2 and 6 years old in tropical regions.
Tobacco is the greatest single cause of oral and pharyngeal cancer. Using tobacco increases the risk of oral cancer by 3 to 6 times [19] [9] and is responsible for around 40% of all oral cancers. [20] Smokeless tobacco (including chewing tobacco, snuff, snus) also causes oral cancer. [21] [22] [23] Cigar and pipe smoking are also important risk ...
Head and neck cancer is a general term encompassing multiple cancers that can develop in the head and neck region. These include cancers of the mouth, tongue, gums and lips (oral cancer), voice box (), throat (nasopharyngeal, oropharyngeal, [1] hypopharyngeal), salivary glands, nose and sinuses.
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Herpes simplex (infection with herpes simplex virus, or HSV) is very common in the mouth and lips. This virus can cause blisters and sores around the mouth (herpetic gingivostomatitis) and lips (herpes labialis). HSV infections tend to recur periodically. Although many people get infected with the virus, only 10% actually develop the sores.
Mild seborrhoeic dermatitis of the scalp may be described in lay terms as dandruff due to the dry, flaky character of the skin. [6] However, as dandruff may refer to any dryness or scaling of the scalp, not all dandruff is seborrhoeic dermatitis. [6] Seborrhoeic dermatitis is sometimes inaccurately referred to as seborrhoea. [4]
These investigations show that the M. globosa is the species that causes most skin disease in humans, and that it is the most common cause of dandruff and seborrhoeic dermatitis (though M. restricta is also involved). [6] There can be as many as ten million M. globosa organisms on a human head. [4]