Symptoms of pterygoid sinusitis generally include nasal congestion, runny nose, decreased sense of smell, headache, visual dysfunction and other symptoms. 1. Nasal congestion: it manifests as persistent nasal congestion on the affected side, which is caused by swelling and congestion of the mucous membrane of the nasal cavity and accumulation of secretions in the nasal cavity. 2. Runny nose: the affected side has a large amount of mucus-purulent or purulent nasal mucus, and it feels “phlegmatic”, which can only be inhaled into the pharynx and then spit out. 3. Decreased sense of smell: the secretion produced by the butterfly sinusitis blocks the nose, causing the patient to ventilate poorly, which leads to the phenomenon of decreased sense of smell, and will also cause nasal congestion. 4. Headache: During an attack of pteroid sinusitis, a large amount of purulent material is secreted, causing swelling of the pteroid sinus and neuropathic headache. The mucus of the pterygoid sinus contains a large amount of toxic substances, and once it enters the body, it will spread to all parts of the body with the blood circulation, thus aggravating the headache. 5. Visual dysfunction: Optic neuritis caused by inflammation of the eyeball and intracranial nerves leads to pterygoid sinusitis, causing patients to experience vision loss. It is recommended that patients with pterygoid sinusitis go to the hospital for examination and treatment under the guidance of a doctor.