• Ear Infections: Chronic ear infections can lead to inflammation and fluid buildup in the middle ear, which can obstruct sound transmission. In young children this is very common, but it can also occur in adults.
• Earwax Buildup: Excessive earwax can block the ear canal, preventing sound waves from reaching the eardrum. In order to create a serious, notable conductive hearing loss, an exceptional amount of earwax needs to be present in the ear canal, obstructing all sound waves from reaching the tympanic membrane or immobilizing the tympanic membrane.
• Eustachian Tube Dysfunction: The Eustachian tube helps equalize pressure in the middle ear. This tube connects the middle ear to the back of the nose. Normally, the Eustachian tube opens with every swallow or yawn to act as a pressure-equalizing valve for the middle ear. It also serves to drain the mucus produced by the lining of the middle ear. Dysfunction of this tube can lead to fluid accumulation and hearing loss.
  
• Otosclerosis: Otosclerosis happens when a tiny bone inside the ear, called the stapes, joins (fuses) with other parts of the ear and stops the ability to hear properly. It is an abnormal form of bone growth. It is not entirely known why otosclerosis happens, but it may be passed on in families. One is more likely to get otosclerosis if a close relative has it.
• Ear Tumors or Cysts: Growths such as cholesteatomas can develop in the ear and block sound waves. Cholesteatoma is an abnormal growth of skin cells in the middle ear behind the eardrum. It can be present from birth (congenital) but typically happens because of chronic ear infections. The most common symptom is a smelly discharge from the ear, but the condition can also cause hearing loss and dizziness. Treatment is surgery to remove the growth; no surgery is usually not an option.
• Ruptured Eardrum: Trauma, such as from explosions, car accidents, or exposure to extremely loud noises, can cause the eardrum to rupture. Infections can also lead to a ruptured eardrum, resulting in hearing loss. This condition is also called tympanic membrane perforation. It often heals within a few weeks without treatment. However, sometimes a patch or surgical repair is needed to heal.

Preventing conductive hearing loss involves taking steps to protect the ears and maintain ear health. Some preventive measures include:

Conductive hearing loss in adults is a condition that can significantly impact an individual’s quality of life. Understanding the causes, symptoms, diagnosis, treatment, and prevention of this type of hearing loss is essential for managing and mitigating its effects. With proper care and timely intervention, many cases of conductive hearing loss can be treated effectively, allowing individuals to maintain their hearing health and overall well-being. If conductive hearing loss is permanent, hearing aids can be a great solution.