Look at the throat can not judge sinusitis, sinusitis can be diagnosed according to the history, clinical manifestations and auxiliary examination. 1. Ask and analyze the medical history: there have been nasal diseases, such as acute and chronic rhinitis, nasal foreign body, deformity rhinitis, tumor, etc.; there have been sinus trauma or foreign body; there have been infections of neighboring organs, such as tonsillitis, adenoiditis, etc., which may develop into sinusitis. 2. Clinical manifestations: Sinusitis can present local symptoms, such as nasal congestion, pus, headache, taste disorders, etc.; can also present systemic symptoms, such as cold, fever, loss of appetite, constipation, body discomfort, etc.. 3. Auxiliary examination: common auxiliary examinations include sinus surface projection area examination, anterior rhinoscopy, nasal endoscopy, imaging examination (e.g., sinus CT), etc. Therefore, it is impossible to determine the cause of the disease by looking at the throat alone. Therefore, it is impossible to judge sinusitis by looking at the throat alone. If you suspect that you have sinusitis, please go to a regular hospital and let a professional doctor make a diagnosis.