Tinnitus is a medical term for hearing sounds in your ears when there is no outside source of the sounds. It's often called "ringing in the ears," but it can also sound like buzzing, hissing, humming, whistling, or sizzling. The noises can be soft or loud, and they may come and go or be ongoing. Tinnitus may occur in one or both ears and vary in pitch.
Pulsatile tinnitus is a rare form of tinnitus that causes a steady beat of whooshing, thumping, or throbbing sounds in one or both ears. If you think you may have pulsatile tinnitus or if you have noticed a sudden loss of your hearing with tinnitus, you should contact your healthcare professional.