Nasogastric feeding is necessary for patients who cannot eat by mouth or cannot open their mouths, and the argument that nasal feeding tubes should not be used as much as possible is unfounded. Nasogastric feeding refers to the insertion of a catheter into the stomach through the nasal cavity, and the infusion of food, water and medication from the tube, in order to maintain the nutritional treatment of certain patients who cannot eat by mouth or cannot open their mouths, such as certain oral surgery, esophageal stenosis, esophageal-tracheal fistula, coma, and patients in critical condition, which can ensure that such patients intake of adequate nutrients, water and medication, and promote the recovery of the condition. It should be noted that performing nasal feeding may cause complications such as nausea and vomiting, aspiration, gastric retention, diarrhea, etc. Once discomfort occurs, the physician should also be notified in a timely manner for treatment.