The main difference between tonsillitis and pharyngitis is that there is a difference in the specific location where the inflammation occurs. Patients with tonsillitis have acute congestion and swelling of the tonsils on one or both sides, and may have further purulent infection of the tonsils, with scattered or even continuous purulent discharge on the surface of the tonsils. The specific site of inflammation in patients with pharyngitis is mainly in the mucous membrane of the throat, which may become acutely congested and swollen, and there may even be acute edema of the soft palate, and the mucous membrane of the vocal cords may also become inflamed and edematous to a certain extent, resulting in significant throat pain. Also, it may cause varying degrees of hoarseness symptoms. Since the tonsils and the mucous membrane of the throat are adjacent to each other, they also have a mutual effect when inflammatory conditions occur.