Sinusitis refers to inflammation of the sinus, clinically mainly bacterial inflammation, as well as fungal inflammation. Whether sinusitis requires surgery depends on the specific condition of the patient. Endoscopic examination of the nose and sinus CT scans can be carried out to assess the condition of the sinus lesions. If there is a lot of sinus secretion and the sinus cavity is congested, and there is polypoid changes in the overall nasal passage, surgical treatment may be considered. For the vast majority of sinusitis patients, the current viewpoint is that treatment is mainly through medication, and only a small part needs surgical treatment after assessment. Therefore, sinusitis does not necessarily require surgery. Start with medication treatment; if the effect is not good, or there are other concurrent issues, consider surgical treatment after assessment.