A tinnitus is a sound, whether it is a high pitch or low pitch, buzzing or whistling sound, perceived by the ear without any acoustic stimulation. One of the causes of onset of tinnitus is exposure to loud sounds. It can be temporary or permanent, and subjective, ie: heard only by the patient, or objective, ie: the caregiver is able to hear it with the help of a stethoscope for example. Objective tinnitus can often be cured but it is quite rare.

In most cases, tinnitus is subjective and originates in neuronal dysfunction. It can thus be linked to a loss of hearing resulting from a damage to the hair cells. Permanent tinnitus is difficult to treat and therapies rely heavily on relaxation techniques. Temporary tinnitus disappears after a few hours but should be considered as a precursor to hearing fatigue. Think about hearing protection.