SignSymptom infobox
ICD10 = ICD10|R|29|2|r|25
ICD9 = ICD9|796.1

Hyperreflexia is defined as overactive or overresponsive reflexes. Examples of this can include twitching or spastic tendencies, which are indicative of upper motor neuron disease as well as the lessening or loss of control ordinarily exerted by higher brain centers of lower neural pathways (disinhibition).


The most common cause of "hyper-reflexia" is spinal cord injury. Standard stimuli like the filling of the bladder can cause excessive responses from the nervous system, such causes are not known.

But "hyperreflexia" can be developed via many other causes, including medication and stimulant side effects, electrolyte imbalance, and severe brain trauma.


Treatment depends on diagnosing the specific pathology causing this symptom. Should it be caused by illicit or genuine use of medication/stimulants, then it may involve removing these drugs from their healthcare.

ee also


External links

* [http://www.nlm.nih.gov/medlineplus/ency/article/001431.htm NIH/Medline]

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Look at other dictionaries:

  • hyperreflexia — noun Overactive or overresponsive reflexes …   Wiktionary

  • hyperreflexia — A condition in which the deep tendon reflexes are exaggerated. detrusor h. SYN: detrusor instability. * * * hy·per·re·flex·ia rē flek sē ə n overactivity of physiological reflexes * * * hy·per·re·flex·ia (hi″pər re flekґse ə)… …   Medical dictionary

  • hyperreflexia — n. autonomic dysreflexia, over activity of the autonomic nervous system caused by an injury to the spinal cord (Medicine) …   English contemporary dictionary

  • hyperreflexia — hy·per·re·flex·ia …   English syllables

  • hyperreflexia — ˌhīpə(r)rə̇ˈfleksēə noun ( s) Etymology: New Latin, from hyper + English reflex + New Latin ia : overactivity of physiological reflexes …   Useful english dictionary

  • autonomic hyperreflexia — paroxysmal hypertension, bradycardia, sweating of the forehead, severe headache, and gooseflesh due to distention of the bladder and rectum; it is associated with lesions above the outflow of the splanchnic nerves …   Medical dictionary

  • detrusor hyperreflexia — increased contractile activity of the detrusor urinae muscle, resulting in urge incontinence, seen in spinal neural disease, supraspinal neural or vascular disease, parkinsonism, and some forms of dementia. Cf. detrusor instability …   Medical dictionary

  • гиперрефлексия — (hyperreflexia; гипер + рефлекс) повышение сегментарных рефлексов вследствие ослабления тормозящих влияний коры головного мозга на сегментарный рефлекторный аппарат; возникает, напр., при поражении пирамидных путей …   Большой медицинский словарь

  • Гиперрефлекси́я — (hyperreflexia; Гипер + Рефлекс) повышение сегментарных рефлексов вследствие ослабления тормозящих влияний коры головного мозга на сегментарный рефлекторный аппарат; возникает, например, при поражении пирамидных путей …   Медицинская энциклопедия

  • Reflex hammer — A reflex hammer is a medical instrument used by physicians to test deep tendon reflexes. Testing for reflexes is an important part of the neurological physical examination in order to detect abnormalities in the central or peripheral nervous… …   Wikipedia

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