Hoarseness may be caused by laryngeal lesions such as congenital malformations of the larynx, inflammatory laryngeal diseases, or laryngeal tumors, etc. It may also be caused by neck diseases such as cervical vascular lesions, neck trauma, masses, etc. It may also be caused by damage to the motor nerves of the vocal cords, such as damage to the laryngeal recurrent nerve, vagus nerve, and superior laryngeal nerve, etc. Different departments should be consulted according to the specific symptoms. Usually, shouting or inflammation of the throat with a cold is the most common cause of hoarseness, so it is recommended to consult the ENT department. If hoarseness is accompanied by neck enlargement, further electronic laryngoscopy is needed in the ENT department to check whether there is any tumor disease in the throat or even in the esophagus. If the above tests do not identify the cause, the patient needs to visit the thoracic surgery department to further improve the CT of the lungs, which can also easily lead to hoarseness if the patient has tumors on the lungs. In daily life, patients need to change bad habits such as spicy and stimulating diet, do not consume foods that are too salty or too sweet, and avoid shouting and talking too much in life to prevent the aggravation of symptoms.