An endoscopy allows the doctor to look inside the esophagus (swallowing tube), stomach and upper small intestine. These are the upper portions of the digestive system. Your child's doctor will use a small flexible tube, starting at the mouth, to see inside the body. Your child's doctor will likely do a biopsy during the Endoscopy Treatment And Cost in India. During a biopsy a small amount of tissue is taken from the lining of the digestive system. The tissue can be studied closely to help determine your child's diagnosis and the best treatment for your child.