The AIM/GOAL of the investigation was to separate (set appart ) the patients who were hospitalized because of the bleeding from the lower parts of digestive tube in the period from January 2011. to December 2013. , and to investigate the frequency of the apperance of etiology factors of the bleeding from the lower parts of digestive tube, and also to find if that is also a case profuse with bleeding from stomach and duodendum, or not. The patients examined / methods/ and procedures in the internal clinic for internal diseases in Clinic hospital Split in the intensive care unit with interventional gastroenterology in the period from January 2011. to December 2013. The number of patients cured here was 1116 patients with gastrointestinal bleeding. The age of the patients was from 18 to 80 years; 807 were male patients while 309 were female patients, and their approximate age was 67,15 years. The data were collected retrospectively in the period of three years; 2011.,2012. and 2013. The documents used in the investigation were; The Act of admission od patients to hospital, and The Act of admission of patients in the intensive care unit with interventional gastroenterology, and Patients records in the Gastroenterology Ward of the Clinical hospital in Split from which were used all the important data referring to; anamnesis, methods and procedures used in treatments, as well as the Letters of release. Results: After all the analysis done the conslusion was that the patients were mostly men (in the biggest frequency). The admission diagnose, with the majority of patients, was MELAENA, while the bleeding was frequently localized in the stomach. For treatments of bleeding were used gastroscopy and colonoscopy, as methods, while (EGDS) was the most usually used method. The released diagnoses with the male patients in the majority of cases was the bleeding ulcer from duodendum; while the released diagnoses with female patients in majority of cases was the bleeding ulcer from stomach. It was confirmed statistically important difference between the released diagnoses of the male and female patients. It was also confirmed the difference between primary and secondary (joined) diseases according to the gender (male and female patients) All in all according to this investigation men are more prone to cirrhosis of liver while women are more prone to arterial hypertension. According to the number of days spent in hospital and in regard with the primary / secondary/ disease the conclusion was that the patients suffering from chronic kidney failure spent the longest time in hospital; while patients suffering from heart failure spent the least time in hospital. The method used in treatment with all above mentioned diseases was (EDGS). After analysing the precision and accuracy of the released diagnoses in refference with the admission diagnoses the conclusion was that in the most cases the accuracy was in the biggest rate in the admission diagnose ( about 98,85%) while the greatest frequency of the mistakes are present at hemathochesia were the admission diagnose accuracy is about (81,20%).