| Allodynia |
Evocation of pain by a stimulus that does not normally evoke pain. |
| Dysthesia |
A spontaneous or evoked unpleasant, abnormal sensation, e.g. hyperalgesia and allodynia. |
| Hyperalgesia |
Increased pain response to a stimulus that is normally painful. Might be static, punctate or dynamic, and might occur with thermal stimuli. Suggested to be a consequence of peripheral and/or central sensitisation. |
| Hyperesthesia |
Increased sensitivity to stimulation, including diminished threshold and increased response. Excludes the special senses. |
| Hyperpathia |
Increased threshold and abnormally painful reactions to stimuli, especially repetitive stimuli. Might occur with dysthesia, hyperalgesia, allodynia or hyperesthesia. Occurs in the presence of fibre loss. |
| Paraesthesia |
A spontaneous or evoked, abnormal but not unpleasant sensation. Proposed to reflect spontaneous bursts of A-β fibre activity. |
| Paroxysms |
Spontaneous or stimuli-associated shooting, electric-shock like or stabbing pains. Might be elicited by an innocuous tactile stimulus or by a blunt pressure. |
| Referred pain |
Abnormal spread of pain from a peripheral or central lesion. Typically referred from deep to cutaneous structures. |
| Sensory deficit |
Partial or complete loss of afferent sensory function. Might not involve all sensory pathways. |
