Hearing loss is a common condition that can affect people of all ages. It may develop gradually over time or occur suddenly. Difficulty hearing can affect communication, relationships, work, and overall quality of life, but many causes of hearing loss can be evaluated and treated.

Ringing in the ear, known medically as tinnitus, is a common condition in which a person hears sounds that do not come from an external source. These sounds are often described as ringing, but they may also be perceived as buzzing, humming, hissing, or clicking.

Dizziness is a common symptom that can describe a variety of sensations, including lightheadedness, imbalance, or a spinning feeling known as vertigo. While dizziness is often temporary, persistent or severe episodes can interfere with daily activities and quality of life.

Nasal breathing is a vital function of human health. When airflow through the nose is blocked—often referred to as nasal obstruction or congestion—it can significantly affect quality of life.

The sense of smell plays an important role in enjoying food, detecting environmental hazards, and enhancing overall quality of life. Loss of smell, known as anosmia, can occur suddenly or gradually and may affect one or both sides of the nose.

Nosebleeds, also known as epistaxis, are a common condition that can occur at any age. Most nosebleeds originate from small blood vessels located near the front of the nasal septum, the thin wall that separates the two nasal passages.