Thromboangiitis obliterans (TAO), also known as Buerger’s disease or von Winiwarter-Buerger syndrome, is a chronic, inflammatory, thrombotic, nonatherosclerotic, segmental, obliterative, tobaccoassociated vasculopathy primarily involving infrapopliteal and infrabrachial medium-sized and small arteries of predominantly young male smokers, occurring prominently in young male smokers, predominantly affecting small and medium sized vessels and veins in the upper and lower extremities. The aetiology of TAO is unknown but there is a strong association with heavy tobacco use. This study was undertaken to study the mode of presentation of TAO,evaluation of the patient in order to assess the severity and effects of various modalities of treatment. It has a strong and positive association with smoking the cessation of which can bring about remission.