The cold voice is also called hoarse, is a viral infection caused by the mucous membrane of the throat edema, congestion affects the vocal cords of the pronunciation, which leads to mute voice. Colds are caused by viral infections, viral attacks on the respiratory mucosa can cause an inflammatory response, resulting in mucosal edema, congestion and other changes in the throat, when the inflammation and edema affects the vocal cords, which can lead to mute performance of the patient. The edema and congestion in the throat can lead to pain and discomfort in the throat, itchiness, etc., which can stimulate the patient to produce a violent cough, which can lead to vocal cord congestion, and can also cause a mute voice. With the improvement of the cold, the mute voice will also be relieved. It is recommended to drink plenty of warm water and control your voice. Mute voice can also be caused by other diseases, if the symptoms do not improve or worsen, it is recommended to consult a doctor to clarify the cause of the disease, and follow the doctor’s instructions for treatment.