Aim: The aim of the present study was to determine the specificity, sensitivity and accuracy of the predictors of ADNEX for risk stratification in different adnexal tumour histology. Methods: It was hospital based observational Prospective Study in the Department of Pathology, Akash Institute of Medical Sciences and Reasearch centre, Devanahalli and cases of tubo-ovarian lesions by salphingo-oophorectomy/ovariectomy with or without hysterectomy. Total cases of tubo-ovarian lesions by salphingo-oophorectomy /ovariectomy with or without hysterectomy in last year were 146 out of total histopathogical biopsies 3101 at our centre AIMS&RC. So prevalence of tubo-ovarian lesions in last year was 4.7%. Out of which, 119 were non-neoplastic and benign cases (3.54%) and 27 were malignant cases (0.87%). The Prospective single centre study was done from 1st April 2021 to 31st March 2022. Results: Maximum number of percentage lies in the age group 31 years to 40 years. In this study of 77 women, maximum were premenopausal 72.73% (56) followed by perimenopausal 7.79% (6) and post-menopausal 19.48% (15). In the study of 77 women, 88.31% (68) of women presented with complaints of pain abdomen followed by mass per abdomen 2.60% (2). 9.09% (7) presented with bleeding problems. Conclusion: It can be inferred that the ADNEX model can be used as a good alternative to subjective assessment in the estimation of risk of malignancy of adnexal masses. It has the potential to change management decisions for women with an adnexal tumor. This could impact considerably on the morbidity and mortality associated with adnexal pathology.