Ear pain bothers many people and affects their work and life. The common causes of ear pain are as follows: cerumen embolism, ear infection, air pressure, other parts of the disease involving the ear and so on. 1, cerumen embolism: cerumen, commonly known as “earwax”, will generally fall out on its own. However, sometimes cerumen falls into the outer ear canal and cannot be discharged on its own because of self-extraction. Some people with “oily ears” also have a build-up of cerumen that does not drain easily on its own. Excessive cerumen can block the outer ear canal and if it becomes hard, it can cause pain by squeezing the outer ear canal. In this case, it is recommended to visit an ENT clinic and have it removed by a specialist to avoid damaging the skin of the outer ear canal or damaging the eardrum by digging too deeply. 2. Ear infection: When inflammation and infection occur in the ear structure, such as boils on the skin of the ear, otitis externa, otitis media, etc., the symptoms of ear pain will occur. If the infection is caused by bacteria, topical antibiotics need to be applied, along with oral anti-inflammatory treatment if necessary. If the infection is caused by pathogens such as fungi or viruses, other corresponding drugs are needed for symptomatic treatment. 3, the impact of air pressure: mostly occurs when riding in airplanes and elevators running fast. In general, the pressure on both sides of the eardrum is equal, and the pressure in the ear can be adjusted through the pharyngeal tube structure that is connected to the pharynx when the body swallows, chews, yawns and other actions. When riding in an airplane or elevator, the air pressure in the surrounding area changes rapidly, and if the pressure in the ear is not regulated in time, symptoms of ear stuffiness and ear pain may occur. Therefore, when riding in an airplane or elevator, you can prevent it by chewing gum, yawning and other actions. 4. Diseases in other parts of the body that involve the ear: such as pharyngeal infection, dental infection, temporomandibular joint syndrome, trigeminal neuralgia, etc. Ear pain bothers many people’s lives and reduces the quality of life. There are several common causes of ear pain as follows: excessive ear wax in the ear, the effect of air pressure, and ear infection.