Abstract: Embodiments of the present invention relate to a system and method for measuring intracranial pressure (ICP). Embodiments of the present invention include emitting an electromagnetic wave into the temple area and/or inner ear of a patient and measuring ICP based on the characteristics of the reflected and/or transmitted electromagnetic wave scattered by the tissue and/or cavity. The characteristics may include variations in the electromagnetic wave corresponding to distortions by the cavity within the skull beneath the temple and/or the oval window within the patient's inner ear. Further, embodiments of the present invention include ICP is elevated in the patient. The present invention concentrates on measuring and quantifying the changes in transmission characteristics to determine changes in ICP.