Objectives: Analyze the clinical features of patients treated for DVT in General County Hospital Vinkovci in order to prevent the recurrence of thrombotic incidence. The specific goals are to examine the proportion of spontaneous and provoked DVTs, the connection of the origin of DVT with some of the comorbidities, the frequency of DVT according to age group, the average duration of treatment and the medication with which the patients were treated. Study design: cross-sectional research Participants and methods: The research study included 103 patients with a confirmed DVT diagnosis. The data were collected according to a developed form for entering data taken from the Hospital Information System. For the purpose of statistical analysis, the statistical programs MedCalc and Microsoft Excel Office 365 were used. Results: The obtained results show that 52.4% of the patients are female. The highest number of patients developed DVT in the age group of 66-100 years. The most common localization of DVT, 26.2%, was in the right leg area. Previous trauma and/or immobilization occurred among 19.4% of the patients. Of the comorbidities, varicose veins of the legs were proven in 46.6% of the patients. 76.7% of the patients most often used Martefarin therapy. Most of the patients were treated between 7 and 24 months (54.3%). Laboratory treatment of hereditary thrombophilia was conducted for 59 patients. Among confirmed genetic mutations, the mutation on one allele of the gene for MTHFR and PAI-1 most often occurs, which has been proven in 15.5% of the patients. Conclusion: In a more frequent percentage of cases, DVT was provoked. Varicose veins are significantly associated with the diagnosis of thrombosis. In most cases, the patients develop thrombosis at an old age. Patients are most commonly treated with Martefarin therapy, while treatment usually lasted up to 2 years.