Whether left vocal cord squamous carcinoma is serious or not should be based on factors such as the degree of differentiation of the tumor, the extent of the spread and the effectiveness of treatment strategies to comprehensively evaluate the prognosis, and cannot simply say whether it is serious or not. On the whole, this disease is a malignant tumor after all, and there is a certain risk of lymph node metastasis and distant metastasis. After diagnosis, patients should go to the hospital for treatment in time to avoid adverse effects. However, if the patient is found at an early stage, well differentiated, less malignant, and with good treatment effect, then the patient can have a chance of clinical cure, and even get a similar life expectancy as a normal person. It can also cause coughing up sputum, coughing up blood, and even respiratory distress, which can jeopardize the patient’s life. This condition is serious. Patients should actively receive treatment at early stage, have regular postoperative review, and improve physical fitness with proper exercise in order to prolong the survival time of patients, improve the quality of daily life, and reduce the recurrence rate of squamous carcinoma of the left vocal cord.