Redness, swelling and pain in the external ear canal may be caused by ear canal injury, otitis externa, cholesteatoma of the middle ear and other reasons.
1. Ear canal injury: If the patient often pulls out the ear or when pulling out the ear, the digging spoon accidentally damages the mucous membrane tissue of the ear canal, resulting in redness, swelling, pain and other uncomfortable symptoms of the patient’s external ear canal.
2. Otitis externa: if the patient’s resistance is reduced, the patient’s external auditory canal will be susceptible to bacterial or fungal infection, causing inflammation of the patient’s external auditory canal, resulting in the patient’s external auditory canal redness, swelling, pain and other uncomfortable symptoms, and in severe cases, it will also cause the patient’s external auditory canal to become congested with blood, pus and other clinical manifestations.
3. Middle ear cholesteatoma: this disease may be poor ventilation function of the eustachian tube or inflammation stimulation, resulting in the middle ear for a long time in the negative pressure state, causing the tympanic membrane invagination, invagination pocket keratinization or dermal debris can not be discharged in a timely manner, the formation of the cholesteatoma, resulting in the auditory ossicles were partially destroyed, resulting in the emergence of localized pus, triggered by the external auditory canal redness, swelling and pain, and other symptoms.
Redness, swelling and pain in the external auditory canal may also be caused by other reasons, it is recommended to consult a doctor in time to clarify the cause of the disease and then treat it.