toxic headache

headache /head·ache/ (hed´āk) pain in the head.

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cluster headache  a migraine-like disorder marked by attacks of unilateral intense pain over the eye and forehead, with flushing and watering of the eyes and nose; attacks last about an hour and occur in clusters.

exertional headache  one occurring after exercise.

histamine headache  cluster h.

lumbar puncture headache  headache in the erect position, relieved by recumbency, after lumbar puncture; due to lowering of intracranial pressure by leakage of cerebrospinal fluid through the needle tract.

migraine headache  migraine.

organic headache  headache due to intracranial disease or other organic disease.

postcoital headache  one occurring during or after sexual activity, usually in males.

sick headache  migraine.

tension headache  a type due to prolonged overwork, emotional strain, or both, affecting especially the occipital region.

toxic headache  headache due to systemic poisoning or associated with illness.

vascular headache  a classification for certain types of headaches, based on a proposed etiology involving abnormal functioning of the blood vessels or vascular system of the brain; included are migraine, cluster headache, toxic headache, and headache caused by elevated blood pressure.

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toxic headache,

headache caused by systemic poisoning or associated with illness.

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headache [hed´āk]

pain in the head; see also migraine. One of the most common ailments of humans, it is a symptom rather than a disorder in itself; it accompanies many diseases and conditions, including emotional distress. Although recurring headache may be an early sign of serious organic disease, relatively few headaches are caused by disease-induced structural changes. Most result from vasodilation of blood vessels in tissues surrounding the brain, or from tension in the neck and scalp muscles.

Immediate attention by a health care provider is indicated when (1) a severe headache comes on suddenly without apparent cause; (2) there are accompanying symptoms of neurological abnormality, for example, blurring of vision, mental confusion, loss of mental acuity or consciousness, motor dysfunction, or sensory loss; or (3) the headache is highly localized, as behind the eye or near the ear, or in one location in the head. Fever and stiffness of the neck accompanying the headache may indicate meningitis.

cluster headache a migraine-like disorder marked by attacks of unilateral intense pain over the eye and forehead, with flushing and watering of the eyes and nose; attacks last about an hour and occur in clusters.

exertional headache one occurring after exercise.

histamine headache cluster headache.

lumbar puncture headache headache in the erect position, and relieved by recumbency, following lumbar puncture, due to lowering of intracranial pressure by leakage of cerebrospinal fluid through the needle tract.

migraine headache migraine.

organic headache headache due to intracranial disease or other organic disease.

tension headache a type due to prolonged overwork or emotional strain, or both, affecting especially the occipital region.

toxic headache headache due to systemic poisoning or associated with illness.

vascular headache a classification for certain types of headaches, based on a proposed etiology involving abnormal functioning of the blood vessels or vascular system of the brain; included are migraine, cluster headache, toxic headache, and headache caused by elevated blood pressure.