It is not uncomfortable to seal the tube in a tracheotomy patient. The fact that a tracheotomized patient is able to have the tube closed indicates that the patient’s condition is improving or is currently in a more stable state, and that the tube is being closed in preparation for the removal of the tracheotomy catheter. The doctor will assess the patient’s state of consciousness, cough reflex, and ability to cough up sputum on his/her own to make sure that the patient is able to cough up sputum through the upper respiratory tract after the tracheotomy tube is closed. For safety reasons, before removing the tracheotomy tube, the tube is first sealed, that is, the mouth of the tracheotomy catheter is blocked, without breathing or sputum from this mouth, to see if the patient can expel sputum from the mouth of his upper respiratory tract, the pharynx. If there is no problem, the tube is successfully sealed and the tracheal tube can be removed later. The tracheotomy patient needs to be evaluated by a medical professional, and it is recommended to consult a respiratory physician or a critical care physician.