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Abstract : Acute lower gastrointestinal bleeding (LGIB) is a common complication of gastrointestinal diseases and occupies an important place in the clinical practice as a major medico-social problem. Although its self-limiting nature, there is a certain percentage of cases with mortality. In order to improve the diagnostic and therapeutic process and the financial cost of this part of emergency in gastroenterology is necessary to arrange adequate stratification of risk groups and their differentiation from patients without the need for hospitalization. In recent years, there are developing many prognostic systems for assessing the risk among patients with lower gastrointestinal bleeding. One of the newest and important systems with great potential is Oakland, whose main positives are its simplified components, the appropriate use before endoscopic procedure or the initiation of conservative therapy.