By definition, dysbiosis indicates an alteration by the resident microbial population present in the various districts of the organism that performs a useful function to correct the overall functioning of the organism. Dysbiosis can occur at the cutaneous, intestinal and vaginal levels when a bacterial or fungal strain tends to prevail or decrease excessively to the detriment of another. At the intestinal level, this imbalance manifests itself with a predominance of strains of Escherichia coli (potentially pathogenic) at the expense of "good" bacteria such as lactobacilli and bifidus bacteria, representing a predisposing factor for bacterial or fungal infections, especially caused by candida. , both acute and recurrent. Only knowing what were the causes of intestinal dysbiosis, can we understand what measures to take to restore the correct intestinal microbial balance. Among the main triggers: prolonged and indiscriminate use of antibiotics and antifungals, laxative drugs, malabsorption disorders and other enteric diseases. Among the most effective remedies: pertinent corrections of diet and intake of prebiotics and probiotics (Lactobacillus acidophilus, L. sporogenes, L. rhamnosus, L. thermophilus, L. bifidus, L. plantarum, L. casei, Bifidobacterium infantis, B. Longum) with several positive functions such as the maintenance of correct intestinal pH, the synthesis of B vitamins and folic acid, immunostimulant action and inhibition of the growth of pathogenic bacteria.