Lingual papillae depapillating oral conditions include geographic tongue, median rhomboid glossitis and other types of glossitis. The term glossitis, particularly "atrophic glossitis" is often used synonymously with depapillation. Where the entire dorsal surface of the tongue has lost its papillae, this is sometimes termed "bald tongue". Nutritional deficiencies of iron, folic acid, and B vitamins may cause depapillation of the tongue. Papillitis refers to inflammation of the papillae, and sometimes the term hypertrophy is used interchangeably. In foliate papillitis the foliate papillae appear swollen. This may occur due to mechanical irritation, or as a reaction to an upper respiratory tract infection. Other
History of medicine As an alternative form of medicine in India, Unani medicine got deep roots and royal patronage during medieval times. It progressed during Indian sultanate and mughal periods. Unani medicine is very close to Ayurveda. Both are based on theory of the presence of the elements (in Unani, they are considered to be fire, water, earth and air) in the human body. According to followers of Unani medicine, these elements are present in different fluids and their balance leads to health and their imbalance leads to illness. By the 18th century CE, Sanskrit medical wisdom still dominated. Muslim rulers built large