 The feeding tube is a medical device used to provide nutrition to people who cannot obtain nutrition by mouth, are unable to swallow safely, or need nutritional supplementation. The state of being federal by a feeding tube is called groveche, and oral feeding or tube feeding. Placement may be temporary for the treatment of acute conditions or lifelong in the case of chronic disabilities. The variety of feeding tubes are used in medical practice. They are usually made of polyurethane or silicone. The diameter of a feeding tube is measured in French units each French unit equals millimeters. They are classified by the site of insertion and intended use. There are dozens of conditions that may require tube feeding. The more common conditions that necessitate feeding tubes include pre-haturated, failure to thrive or malnutrition neurologic and neuromuscular disorders, inability to swallow, anatomical and post-surgical malformations of the mouth and esophagus, cancer, santhe liposymprome, and digestive disorders.