Tinnitus is usually caused by a neurological lesion or a lesion of the eardrum, but it can also occur in severe heart disease. Generally, tinnitus is caused by lesions of the nervous system or the eardrum, such as acute otitis media, cerumen impaction, foreign bodies in the external auditory canal, and craniocerebral injury. Other systemic diseases can also cause tinnitus, such as high blood pressure, atherosclerosis, endocrine system diseases and so on. Tinnitus caused by heart disease is often due to a decrease in the contractile function of the heart due to various reasons, resulting in a significant decrease in cardiac output, causing insufficient blood supply to the brain and causing tinnitus. Tinnitus can be caused by a wide variety of diseases, which need to be judged on an individual basis, with or without underlying diseases. If tinnitus occurs, you should go to the hospital in a timely manner, do the relevant examination to clarify the diagnosis, and then carry out targeted treatment.