Introduction to Hyperesthesia
Hyperesthesia presents as a heightened sensitivity to any of the five basic senses: sound, sight, taste, touch and smell. Depending on which sense is affected, this hypersensitivity can cause pain. In some cases, only one sense is affected; in other cases, all senses are affected. When only one sense is heightened, it is often categorized into a specific hyperesthesia. For example, heightened sensitivity to sound is called auditory sensitivity. When touch is affected, it is referred to as tactile sensitivity. Hyperesthesia also includes both allodynia and hyperalgesia .