Intra-operative bulge of brain during intracranial surgery is a devastating situation, many measures are employed in the graded ways to immediately control , other wise, it can lead to rise in morbidity, development of venous infarct, and rarely may increase mortality risks also. these measure may include position of head, use of intravenous anesthetic drug, stopping inhalation agents ie. nitrous oxide, maintaining air way patency, correcting excessive head rotation, tapping cyst or hematoma, releasing C S F from cistern or E VD placement or re-opening of lumbar drain if placed in .