Earwax is medically known as cerumen. Cerumen blockage of the ear canal can cause tinnitus, but it is not usually considered pulsatile tinnitus. Pulsatile tinnitus is generally defined as a tinnitus whose frequency corresponds to the heartbeat and is partially associated with the clonic rhythm of a myoclonic seizure. With cerumen blocking the ear canal, patients may also experience conductive hearing loss, itching, a feeling of fullness and pain in the ear canal. When the cerumen is too large, it is advisable to seek medical attention to have it removed.