What causes tinnitus? You need to know these factors

Tinnitus is an illusion of the auditory system, which is also the subjective perception of the human ear. Tinnitus is relatively common in clinical practice. Many people do not know what causes tinnitus. Generally speaking, tinnitus is closely related to external factors and may also be caused by disease.

1. Pathological aspects

Tinnitus in some people is caused by ear diseases or diseases in other parts of the body. Under normal circumstances, the various noises inside the human body are not easily perceived by the human ear. This is because the sound waves of the external sound field mask the internal sound waves. At the same time, the eardrum, ear bones, and ligaments of the human ear have the function of dissipating internal sound waves to the external auditory canal. When there are ear diseases, such as obstruction of the external auditory canal and increased inner ear pressure, patients are prone to tinnitus. In addition, cardiopulmonary disease, high blood pressure, drug allergies and other reasons can increase internal noise beyond normal values ​​and cause tinnitus.

2. Psychological aspects

Withdrawing attention from the external world and focusing it on proprioception can sometimes weaken the adaptability of hearing and lead to tinnitus. The concentration of attention can intensify the tinnitus phenomenon and the feeling of tinnitus.

3. Ear reflexes

Tinnitus in some people is due to oto-emission phenomenon. The ear is an organ that receives sound, but modern medicine has discovered that the ear can also emit sound waves.

4. Chronic visceral diseases The vasomotor nerve fibers of the internal auditory artery come from the inferior cervical ganglion, which fuses with the first ganglion to form the stellate ganglion and connects with the abdominal organs through the vagus nerve. Therefore, the internal organs produce nerve impulses, which can cause spasmodic contraction or expansion of the inner ear blood vessels, change the blood supply to the inner ear, and cause tinnitus.