The acute diarrheic disease (ADD) affects most children provoking a tangible sanitary and social-economic implication in the national system of health protection. The success of control thereof is also depending in most cases of the determining the etiologic level, including the detection of the etiologic factors taken in the associations. The intestinal protozoa associations (IPA) are occurring frequently to children with ADD, the dissemination level and structure thereof being influenced by the age, season and biotope factors. IPA revealing contributes to make more exact the diagnosis, treatment and control measures effectiveness increase. It is necessary to tackle the problem of polyparasitism with the multidisciplinary point of view.