Aim: Common bile duct stones are found in 10–15% of patients having gall stone disease. Common bile duct stone disease in more common in our region. This study was done to see the incidence of CBD stones in our hospital. Methods: This study was done for a period of one year from January 2016 to December 2016 in patients who were admitted for common bile duct stone disease in surgery department of JLNMCH, Bhagalpur. Thorough examination, investigations and surgeries were performed. Results : CBD stones were more common in females than males with a ratio of 2.5:1. Average age group presented with the disease was 30 years. In 20 % of the gall stone disease, CBD stones were associated. It was common in obese individuals than normal weight. Common in low socioeconomic group people. Conclusion– The incidence is increasing with time and females are the commonest sufferers.