Background: Blunt abdominal trauma constitute cases where there is an injury to one or more abdominal viscera with or without hemoperitoneum in the absence of external penetrating injury to the abdomen. Objectives: The aims of the present study were - To discuss various aspects of Blunt Abdominal Trauma, To evaluate the ability of US in detecting Haemoperitoneum, Intraperitoneal visceral injuries. Analysis of sonographic findings and its correlation with clinical background, laboratory investigations, conventional and contrast radiographic procedures, CT-scan and operative findings wherever possible. To evaluate the role of US in the follow-up of patients with BAT. Methodology: Prospective observational study on 40 cases with blunt trauma in Government Hospital Kurnool. Results: Road traffic accident was the major cause. Ultrasound was able to identify free fluid, solid organ injuries (lacerations, contusions, hematomas and rupture) and perivisceral fluid collection. The overall sensitivity of US in evaluation of BAT was 83%and specificity was 96%. The sensitivity of US in detecting free fluid in our study was 100% because not all cases were confirmed by CT or laparotomy. Amongst the visceral injuries, spleen, liver and kidney were the most common abdominal organs injured with incidence of 25%, 20% and 10% respectively. Also plays a major role in followup of patients with BAT. Conclusion: Thus the ability of US to accurately detect the presence of free fluid andto pin point the injured organ, helps the clinician in contemplating and planning the appropriate therapeutic approach to a patient with suspected blunt abdominal trauma.