Streptococcus pneumoniae is the most common cause of acute otitis media, accounting for approximately 30-50% of cases.

Chronic otitis media can cause a variety of symptoms, including ear pain, hearing loss, tinnitus, and otorrhea (discharge from the ear).

The most common cause of sudden sensorineural hearing loss is idiopathic, meaning that the cause is unknown.

Ménière's disease is more common in people over the age of 40, in women, and in those with a family history of the disease.

Squamous cell carcinoma is the most common type of laryngeal cancer, accounting for approximately 95% of cases.

Sinusitis can cause a variety of symptoms, including nasal congestion, facial pain, headache, and fever.

Trauma is the most common cause of epistaxis, accounting for approximately 60% of cases.

Otosclerosis is a condition that causes hearing loss by affecting the bones of the middle ear.

Papillary thyroid cancer is the most common type of thyroid cancer, accounting for approximately 80% of cases.

Parathyroid adenoma is more common in people over the age of 50, in women, and in those with a family history of the disease.

Laryngitis is the most common cause of hoarseness, accounting for approximately 90% of cases.

Sleep apnea can cause a variety of symptoms, including snoring, excessive daytime sleepiness, morning headaches, and difficulty concentrating.

Noise exposure is the most common cause of tinnitus, accounting for approximately 90% of cases.

Vertigo can cause a variety of symptoms, including dizziness, lightheadedness, nausea, and vomiting.

Bell's palsy is the most common cause of facial paralysis, accounting for approximately 70% of cases.