Background: Inflammation of appendix is most collective medical condition. Appendicitis can develops serious when it rupture. Perforation is additional common problem in many aged patients. Aim: The goal of study was to classify diagnosis of appendicitis on sonography and its correlation with age. Methodology: Cross-sectional study was directed on a group of patients who had appendicectomy at the same time. All data was summarised, including the patients age, sex, clinical findings, and ultrasound findings. Across-sectional assessment of 98 patients under age of 35 who required a physical exam and ultrasound findings was conducted. Individuals of various ages were divided into groups. Demography, clinical presentation, and diagnosis were compared between the groups. The diagnosis was made through clinical examination followed by ultrasonography. Different age groups are compared to ultrasonography findings. Results: During study, total number of patients were 98 under the age of 35 years with suspected appendicitis, 42males and 56 females. Appendix found in 74indiviuals, 47females and 27 males. Of all indiviualss, 74 were diagnosed by medical valuation and ultrasound findings. By performing ultrasound it has been evaluated that all patients had appendicitis. From total, 47 were females and 27 were male patients. Appendix was found in total 74 cases with associated other signs of tenderness. According to gender females were found more positive results of disease than males. Out of 98 patients 47 females with ultrasound positive results and 27males were with ultrasound positive results. To find out the relationship between age groups, gender and appendicitis results we applied chi square test. Output pf chi square test for age show that there is same relationship exist between different age groups and appendicitis result. The relationship was significant and we observed p value (0.045) which is less than (0.05) there is same relationship exist between different ......