Tinnitus is a condition in which the patient feels a ringing in the ear, but there is no corresponding sound source in the surroundings. It can occur unilaterally or bilaterally. Sometimes patients feel that the ringing comes from inside the skull, which is called cranial ringing or brain ringing. There are often the following causes of tinnitus, such as diseases of the ear, such as cerumen embolism, non-suppurative otitis media, suppurative otitis media, blocked eustachian tubes, otosclerosis, Meniere’s disease, auditory neuroma, noise deafness, toxic deafness, etc. Some systemic diseases can also cause headache and tinnitus, such as high or low blood pressure, arteriosclerosis, anemia, leukemia, kidney disease, diabetes, uremia, etc.