However, pharyngitis and laryngeal cancer can be easily confused. However, pharyngitis and laryngeal cancer can be easily confused. It is important to distinguish the two in time to prevent cancer from arising. It can be determined by the symptoms and related tests. These two diseases have different clinical symptoms. Patients with pharyngitis may experience discomfort, foreign body sensation, tingling and coughing in the throat, as well as dryness, swelling and blockage, and patients with pharyngitis often spit out mucus and phlegm in the early morning. Patients with laryngeal cancer do not have obvious clinical manifestations in the early stage. Some patients may have blood in the sputum, difficulty in breathing, hoarse voice and foreign body sensation in the throat area. Preliminary judgment can be made through these symptoms. In addition, since laryngeal cancer is a malignant tumor, it will be accompanied by some other metastatic symptoms to judge. Whether there is a lump in the neck is the main way to distinguish pharyngitis from laryngeal cancer. Patients with pharyngitis do not have lumps in the neck, however, patients with laryngeal cancer are prone to lymph node metastasis in the neck, thus forming lumps in the neck. Once the organism finds a lump in the neck, it should go to the ENT department of the hospital at the first time to exclude the possibility of tumor so as not to affect the treatment effect due to the delay of treatment. Furthermore, the current medical examination means are still very good. It is possible to clearly distinguish post-pharyngitis laryngeal cancer through laryngoscopy directly. Pharyngitis will only show the red and swollen appearance of mucous membrane in the throat, while laryngeal cancer will find an infiltrating growing mass in the throat. This can be used as a direct judgment. Long-term smokers and alcohol drinkers should pay attention to distinguish pharyngitis from laryngeal cancer when they have symptoms of throat discomfort and cough, and go to hospital immediately when a lump is found in the neck.