18 causes of conductive hearing loss, please protect yourself after reading

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Common types of hearing loss include conductive hearing loss, sensorineural hearing loss, and mixed hearing loss. Only by understanding your own types of hearing loss and taking appropriate medicine can you effectively improve your hearing symptoms. Next, I will make a small number of common causes of conductive hearing loss.

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The causes of conductive hearing loss include:

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1. Ear deformity: including atresia of external auditory canal, deformity or disappearance of auricle, deformity or disappearance of ossicular chain, vegetable shaped ear, etc., which may cause conductive hearing loss;

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2. Cerumen embolism: a common cause of conductive hearing loss. Cerumen is usually expelled from the ear canal. Sometimes cerumen accumulates in the ear canal and forms a embolus, which can partially or completely block the ear canal. Cerumen suppository has zongzi color and yellow color. If the ear canal is wet, it will turn jujube red. If it is dry, it will turn black (common in the elderly). If the ear canal is partially embolized, there will be no hearing loss. If the ear canal is completely blocked, there will be hearing loss. Before taking out cerumen, don’t do audiometry or choose hearing aids;

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3. Eczema of the outer ear: people with weak hearing feel itchy and painful in the outer ear or the outer ear canal, and the skin of the outer ear canal is red and swollen. If the redness and swelling are not serious and do not affect the hearing, the test can be done, but the hearing aid can not be selected immediately;

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4. Otitis externa: inflammation of the wall of the external auditory canal. If the swelling is not serious, it will not cause hearing loss.

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5. External auditory canal polyp: polyp is formed by cartilage growing towards the ear canal cavity. Any abnormal growth of polyps or bony tissue should be consulted with a facial surgeon.

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6. Collapse of external auditory canal: it is related to the increase of age. The older the age is, the more serious the collapse is. The collapse of the external auditory canal may cause partial or complete blockage of the auditory canal The ear canal can be opened by lifting the auricle up and back;

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7. Perforation of tympanic membrane: caused by inflammation, foreign body, fracture, blasting sound or slapping. Small perforations can cause 10db-15db loss, but small perforations usually heal themselves. The large perforation must be repaired by operation (tympanoplasty);

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8. Purulent: regardless of the color of purulent fluid, consult with a facial surgeon;

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9. Healing after perforation: it looks like perforation, but the otoscope will reflect light like a mirror, which is caused by healing after perforation. Because the fibrous layer can not be regenerated, the tympanic membrane after healing lacks a layer and forms the so-called “mirror mask”.

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10. Tumor or cholesteatoma: a special type of otitis media. Most of them are perforation of the relaxation part of tympanic membrane, and the inflammation of middle ear invades the external auditory canal. Persistent effluvium was the main characteristic. Those who have such symptoms should go to the ENT department immediately.

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11. Enlargement of ear canal: mostly caused by operation. The tympanic membrane and ossicular chain of these hearing impaired people usually disappear. At this time, the skin of the external auditory canal becomes very sensitive. Consult the doctor before choosing a hearing aid. Usually, when the tympanic membrane is perforated or the middle ear is repeatedly infected, there will be scars on the tympanic membrane, which limits the activity of the tympanic membrane and causes slight conductive deafness;

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12. Tympanosclerosis: a white sclerotic scar caused by degeneration of the tympanum;

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13. Foreign bodies: common foreign bodies in the external auditory canal include cotton ball, insect, malt and other unpredictable things;

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14. Suppurative otitis media: it is usually caused by bacteria entering the middle ear cavity through the eustachian tube after a cold or other respiratory tract infection. The eustachian tube is swollen and blocked, so that the liquid in the middle ear cavity cannot be drained. The disease can be acute (severe, but short duration) or chronic (recovery or long duration). Pus accumulates in the middle ear cavity and causes hearing loss. The pressure of pus can cause pain. The tympanic membrane loses its normal gray white color and turns bright red;

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15. Non suppurative otitis media: it is also called aero otitis media, secretory otitis media, middle ear effusion, serous otitis media or “glue ear”. It is not purulent, but secretory or serous. It can be imperceptible for a long time. It doesn’t look serious, but it isn’t;

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16. Cholesteatoma: it is a “tumor” at the top of the middle ear, sometimes showing perforation of the relaxation part of the tympanic membrane, and eroding the external auditory canal. Persistent effluvium is a typical symptom, which should be consulted immediately by a facial surgeon. Usually after removing the tumor, it will leave some permanent hearing loss;

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17. Otosclerosis: caused by spongy bone around the ear. Sometimes spongiform can become sclerotic focus, make stapes floor fixed, stapes muscle activity weakens even disappear. This kind of hearing loss is generally 60db-65db, often accompanied by tinnitus. More women than men, more family history, pregnancy usually trigger the occurrence of this disease. The treatment of otosclerosis usually adopts surgery. After stapedectomy, a silicone tube is used instead;

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18. Broken ossicular chain: due to loud, slapping, traffic accidents, etc.

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