A stroke is defined as an abrupt onset of neurological deficit that is attributable to a focal vascular cause. Majority of stroke are ischaemic while another result from primary haemorrhage either intracerebral or into the subarachnoid space. Stroke gave a history of diabetes more when compared with the general population. Acute stroke patients have either diagnosed or newly diagnosed diabetes, probably a major proportion of patients have stress hyperglycaemia. Diabetics, as well as patients with stress hyperglycaemia, have a severe stroke and these patients are associated with poor prognosis.