Middle Ear Infection (Otitis Media): This is a common condition that can cause hearing loss, especially if the patient has a history of recent upper respiratory infection or ear trauma. The Eustachian tube connects the middle ear to the back of the nose and throat, and blockage of this tube can lead to fluid accumulation and infection in the middle ear, resulting in hearing loss.

Earwax Impaction: Excessive earwax can block the ear canal, leading to hearing loss. This condition is common and can be easily diagnosed and treated.
Eustachian Tube Dysfunction: Problems with the Eustachian tube, which regulates air pressure in the ear, can lead to hearing loss. This condition can be caused by allergies, colds, or sinus infections.
Labyrinthitis: Inflammation of the inner ear can cause hearing loss, vertigo, and tinnitus. This condition can be caused by viral or bacterial infections.

Acoustic Neuroma: A rare, benign tumor on the nerve connecting the inner ear to the brain can cause hearing loss, tinnitus, and balance problems. Although rare, this condition requires prompt diagnosis and treatment to prevent further complications.
Stroke or Cerebrovascular Accident: In rare cases, hearing loss can be a symptom of a stroke, especially if it is accompanied by other neurological symptoms such as weakness, numbness, or difficulty with speech.
Multiple Sclerosis: This autoimmune disease can cause a wide range of symptoms, including hearing loss, vision problems, and balance issues.

Ototoxicity: Certain medications, such as antibiotics or chemotherapy, can cause hearing loss as a side effect.
Meniere's Disease: A disorder of the inner ear that causes vertigo, tinnitus, and hearing loss, often fluctuating.
Autoimmune Inner Ear Disease: A rare condition in which the immune system attacks the inner ear, causing hearing loss and balance problems.
Cogan's Syndrome: A rare disorder that causes inflammation in the eyes and ears, leading to hearing loss and vision problems.