The lateral thoracic artery follows the lower border of the Pectoralis minor to the side of the chest, supplying the Serratus anterior and the Pectoralis, and sending branches across the axilla to the axillary glands and Subscapularis; it anastomoses with the internal mammary, subscapular, and intercostal arteries, and with the pectoral branch of the thoracoacromial. Based on the literature findings the present study was planned to evaluate the arterial pattern of lateral thoracic artery in human cadavers. As this study is helpful to know the type and frequency of vascular variations. The present study was planned in Department of Anatomy in Patna Medical College to assess the arterial pattern of lateral thoracic artery in human cadavers. The study was planned on 30 cadaveric subjects. The axillae from embalmed cadavers allotted for dissection in the Department of Anatomy used for the study. The knowledge of these variations is necessary for the surgeons considering the frequency of procedures performed in this region. The absence of branches from the second and third parts of axillary artery may be responsible for compromised collateral circulation between the branches.