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Background: The study in consideration aimed to do morphometry of internal carotid artery (ICA) and substantiate any differences significant in relation to sex and age on digital subtraction angiography (DSA) imaging. Objectives: Our study aims to ascertain morphometric parameters of ICA through DSA evaluation and to build a normative data which is accurate enough for the neurovascular procedures to be performed. The study will also carry out correlation of morphometry of intracerebral blood vessels with sex, age, and side-related dimorphism. Material and Methods: Our study, cross-sectional in design was done on 70 patients (>20 years). Diameter of different segments of ICA were measured after imaging was done on DSA using a Philips biplane system clarity (Allura FD20/20). Statistical analysis was done. Result and Conclusion: In males, mean diameter of petrous, cavernous, supraclinoid, and choroidal segments of ICA were more when compared to females. Statistically significant differences were found in supraclinoid segment of ICA between males and females. The mean diameter of supraclinoid and choroidal segments of ICA showed a decreasing trend from younger to older age groups. The difference in the mean diameter of petrous segment of ICA with increasing age was statistically significant. The results of our study show that differences were statistically significant in supraclinoid segment of ICA in males and females. Neurosurgeons in order to be confident in tackling the various emergencies in this region need to have in-depth knowledge of morphometery of cerebral arterial circle.