Introduction & aim: Liver biopsy has been considered the ''gold standard'' of diagnosis, the most direct way of visualizing the necroinflammatory and architectural status of liver in HCV patients planned for therapy. We aimed to study the relation between pathological findings in liver biopsy and their impacts on sustained virological response (SVR) in HCV patients receiving pegylated interferon and ribavirin (Peg/Riba). Methods:A retrospective analysis on data collected from 1486 HCV patients receiving Peg/Riba between May 2012 and May 2013 at the National Hepatology and Tropical Medicine Research Institute (NHTMRI). Initial labs before treatment including percutaneous liver biopsy were analyzed in relation to virological response.Results: 982 (66.1%) of patients were males and 504 (33.9%) were females. The mean age was (43.72 ± 9.527y), with 1008 (67.8%) more than 40 years. Higher SVR achieved in patients with no or mild steatosis than moderate to severe degrees (96% vs 4%, p: 0.001). More than 60% of patients with no or mild fibrosis showed SVR (p: 0.04). Patients with mild activity showed much higher SVR than patients with severe or advanced activity (67.1% vs 32.9%, p: 0.001). Negative viral load at w12 was significantly higher in patients with no or mild fibrosis (96.7% vs 94.9%, p: 0.004), no or mild steatosis (95.7% vs 94%, p: 0.024), but was not related to activity (95.8% vs 95.7%, p: 0.869). Conclusion:Steatosis, fibrosis and activity affected treatment outcome and could directly affect treatment decision. The response rate of peginterferon alpha 2a was comparable to alpha 2b. These findings are important to decide antiviral course in patients with multiple DAA RAVs leading to failure.