Subtropical diarrhea(a tropical diarrhea) - the serious chronic disease, described inflammatory atrophic changes of a mucosa, persistent diarrheas, a glossitis and an anemia; it is widespread in the countries with a tropical and subtropical climate, it is very rare among inhabitants of an average strip. Women, especially during pregnancy, and the face of advanced age is more often are ill. The etiology and a pathogenesis are studied insufficiently. To development of disease the defective delivery (mainly vegetative nutrition), the insufficient use in nutrition of fiber, deficiency of vitamins, the serious infectious diseases, previous bacteriemic and protozoal coloenterites, weakening and an attrition of an organism, endocrine dysfunctions (during a lactemia at women, fading of sexual function), psychological an overstrain contribute. The disadvantage of nutrition of the vitamins, aggravated by disturbance of their absorption in an intestine, promotes occurrence of dystrophic changes in internal organs, and deficiency of Acidum folicum and vitamin В12 - to development of an anemia. Efficiency of an antibioticotherapia testifies in favour of the microbial nature of disease. Signs » current. Disease begins with acritical complaints, sensations of rumbling, transfusion in a stomach, a meteorism, feeling of a burning sensation in tongue. Then there is a persistent diarrhea; excrements liquid, foamy.