Any noise in ear is known as tinnitus. Different conditions, such as ear wax, fluid in middle ear, Meniere's disease, oto-toxicity, vascular anomalies, 8th. nerve tumor may cause tinnitus. You should be investigated to find the cause and then it can be treated properly. Consult a good ENT specialist  in your locality.

Hello....... It called tinnitus....Tinnitus involves the annoying sensation of hearing sound when no external sound is present,it could be subjective or objective, high blood pressure , turbulent blood flow , malformed capillary , exposure to high intensity bsound can cause tinnitus , underlying cause should treated consult good ent specialist