A Background: Elderly patients are at higher risk of developing deep vein thrombosis compared to younger patients. Patients with multiple risk factors often demonstrate a lower level of self-efficacy, which influences the ability to manage the condition and medication adherence and satisfaction. Aim: to assess anticoagulant treatment satisfaction among elderly patients with deep vein thrombosis at Sohag  University Hospital. Research design: An descriptive cross-sectional research design was used. Setting: This study was conducted in the Vascular Surgical Department and outpatient clinics at Sohag University Hospital. Sample: A purposive sample involved 193 elderly patients. Tools: Two tools were used. 1st tool: Structured interview questionnaire; consisted of 2 parts.  Part (1): demographic data of elderly patients. Part(2): Clinical data. 2nd tool: Anti-Coagulant Treatment Satisfaction Scale (ACTS). Result: 56,5