Aphthous stomatitis caused by a reduction in numbers of CD4+ T cells may be implicated in RAS-type ulceration in HIV infection. The thickness of the mucosa may be an important factor in aphthous stomatitis. Usually, ulcers form on the thinner, non-keratinizing mucosal surfaces in the mouth. Factors which decrease the thickness of the mucosa increase the frequency of occurrence, and factors which increase the thickness of the mucosa correlate with decreased ulceration. The nutritional deficiencies associated with aphthous stomatitis (Vitamin B12, folate, and iron) can all cause a decrease in the thickness of the oral mucosa (atrophy). Local trauma is also associated
Social construction of the body Social construction of the body The social construction of the body is a hypothesis that affirms that the relationship between the body and the socio-cultural context occurs in both senses, and that society and culture influence the formation of its members to some extent. The body has become a social construction, in whose delimitation have participated multiple disciplines. Thus, medicine and religion can be mentioned as the agents that have traditionally influenced, together with the rules of urbanity and educational institutions. These four agents have been building a model, which every individual has as reference. According to Bryan S. Turner,