What is the cause of constant ringing in the ears?

The causes of constant tinnitus in the ears are usually caused by diseases such as neurogenic tinnitus, cerumen impaction and otitis media. 1. Neurogenic tinnitus is the most common type of tinnitus, which usually refers to the phenomenon of abnormal sounds subjectively occurring in the ear without the presence of an external sound source, such as buzzing or cicadas. 2. Cerumen embolism occurs when cerumen is overproduced or discharged from the external auditory canal, which usually has no obvious symptoms, and some patients may show localized itching of the external auditory canal, ear distension and tinnitus, and hearing loss. 3. Otitis media refers to the inflammation in the middle ear cavity, and its main symptom is ear pain, accompanied by ear swelling, tinnitus, pus and other symptoms. It is recommended that the patient actively seek medical treatment at the onset of the disease and undergo a systematic examination for a clear diagnosis.