Aim of the study: To analyse medical services provided to patients reporting to the Hospital Emergency Department (ER). Material and methods: This retrospective study used the method of analysing medical records of patients admitted in the period from 1 January 2016 to 30 June 2016 at the Stanistaw Staszic's Hospital Emergency Department in Pita. The analysis was based on the medical history of patients registered in the Eskulap electronic system. Results: Studies have shown that the gender of the patients did not affect the mode of admission to ER (p > 0.05). Analysis of the research material showed the existence of a statistically significant relationship between the admission mode and the time of year (p < 0.001), time of day (p < 0.001), discharge mode (p < 0.001), and laboratory tests (p < 0.001). Conclusions: Patients usually reported to the ER during the day, in the springtime, in emergency mode: other cases. The largest number of final diagnoses according to the International Classification of Diseases and Health Problems ICD-10 were head injuries, musculoskeletal injuries, foreign body in the outer part of the eye, non-traumatic abdominal pain, hypertension, and cerebrovascular incidents. Patients who reported themselves to the ER most often reported complaints that were components of the S code, while patients imported by an Emergency Medical Team (EMT) were most often diagnosed with disorders contained in codes I and R. Among men, the most common diagnosis according to the ICD-10 were health problems from the S and T codes, and in women from code R.