The stuffy ears after a cold are due to mechanical blockage of the Eustachian tube, dysfunction of the Eustachian tube and secondary otitis media.
1. Mechanical blockage of the Eustachian tube: after a cold, the nasopharyngeal secretions block the Eustachian tube, and the local mucous membrane swells, which can cause mechanical blockage of the Eustachian tube, creating a state of negative pressure in the middle ear and making the ears feel stuffy.
2. Eustachian tube dysfunction: inflammation spreads to the eustachian tube after a cold, leading to eustachian tube opening dysfunction, resulting in negative pressure in the middle ear, thus making the ear feel stuffy.
3. Secondary otitis media: After a cold, pathogenic microorganisms retrograde infection of the middle ear cavity, may be secondary to otitis media, resulting in middle ear effusion, resulting in stuffy ears.
It is recommended that the patient should consult a doctor in time for a systematic examination to clarify the diagnosis and the cause of the disease.