Throat ulceration, also known as erosion or ulceration of the mucous membrane of the throat, is commonly found in oral ulcers, pharyngitis, acute suppurative tonsillitis, pharyngeal tumors and so on. 1. Mouth ulcers: Vitamin D deficiency, food irritation and other causes of mouth ulcers, which can cause ulcers in the mouth or throat with obvious pain. 2. Pharyngitis: Fensen pharyngitis, herpes pharyngitis, often caused by viral infections, can appear throat ulcers, manifested as burning, foreign body sensation, pain and other symptoms. 3. Acute purulent tonsillitis: it can cause bilateral tonsil congestion and enlargement, with a large amount of purulent secretion attached to the surface, and the inflammation stimulation can also cause ulceration in the throat. 4. Tumor of pharynx: such as tonsil cancer, pharyngeal cancer, etc., which can be manifested as persistent hoarseness, ulceration of throat, foreign body sensation, blood in sputum, etc. If the ulceration of throat is prolonged for a long period of time, it may cause the ulceration of throat. If long-term throat ulcers are not relieved or even aggravated, it is recommended to go to the hospital in time to find out the causes of throat ulcers and treat them positively so as not to delay the condition.