Tracheotomy has certain effects on the human body, which may cause infection, hoarseness, suffocation and other effects. 1. Infection: It is generally due to the fact that after tracheotomy, the cut trachea will be in the air, and the open airway is easy to cause bacterial invasion, which in turn causes bacterial infection. 2. Hoarseness: After tracheotomy, the vocal cords will be damaged to a certain extent, resulting in hoarseness. 3. Asphyxia: it may be due to the bleeding caused by the trachea after tracheotomy, which in turn leads to the phenomenon of asphyxia, or it may be due to the increase of phlegm in the throat after tracheotomy, which gradually becomes sticky, and the phlegm will lead to tracheal obstruction, and then the phenomenon of asphyxia occurs. After tracheotomy, proper position should be maintained to keep breathing unobstructed, pay attention to local hygiene and cleanliness to prevent infection.