Insertion of the nasogastric tube is a procedure used in OPD as well as indoor patients commonly for therapeutic and diagnostic reasons. It is placed for relief of intestinal obstruction, malnutrition, comatose or encephalopathy patients. It is also used for diagnostic purposes like sampling gastric cancer cells. The tube is manufactured form plastic or silicon. It is made in different sized and calibers for pediatric and adult use. The length needed to be inserted is measured before placing. Like any catheter, nasogastric tubing has a safe time period to stay insitu. The normal guidelines state that the tube should not be kept in more than 4 weeks if the purpose is entral feeding. After this the tube should be removed and changed if needed to be continued.