Introduction: Acute appendicitis is one of the commonest surgical emergencies requiring surgery in both adults and children. The overall frequency of appendicitis for symptomatic patients younger than 20 years is 41%; the frequency for those older than 20 years is 59%. Present study was conducted in clinical cases representing the inflamed appendix cases. Various positions of appendix in patients with appendicitis and also the clinical picture, radiology investigations, intra operative findings and histopathology was studied. Materials & Methods: Present study was a prospective, observational study carried out in Department of Surgery, Saraswathi Institute of Medical Sciences, Anwarpur, Hapur, Uttar Pradesh, India. 60 cases were included in study on the basis of inclusion and exclusion criteria and subjected to clinical assessment using signs, symptoms and laboratory criteria, histopathology and also the position of the appendix, which were recorded in the proforma. Results: 60 patients were included in present study; among them 37 were males and 23 were females. Appendicitis was more common during the 3rd decade of life -25 cases (41.7%), followed by the 4th decade-14 cases (23.3%). Overall sensitivity of 91.1% was detected in cases of retrocaecal appendicitis. On comparing the position of appendix with USG and intra operative findings; USG has sensitivity of 91.9% in retrocaecal type followed by 90.9% in detection of pelvic type. Conclusions: As evidenced by high misdiagnosis and perforation rates of appendicitis, the diagnosis of appendicitis