{"id":52778,"date":"2025-04-25T22:08:32","date_gmt":"2025-04-26T02:08:32","guid":{"rendered":"https:\/\/www.hancockhealth.org\/mayo-health-library\/headache\/"},"modified":"2026-02-04T12:12:04","modified_gmt":"2026-02-04T17:12:04","slug":"headache","status":"publish","type":"mayo","link":"https:\/\/www.hancockhealth.org\/ja\/mayo-health-library\/headache\/","title":{"rendered":"Headache"},"content":{"rendered":"<div class=\"container mx-auto   wordpress-block wordpress- core-\">\n<p>Headache is pain in any region of the head. Headaches may occur on one or both sides of the head, be isolated to a certain location, radiate across the head from one point, or have a viselike quality.<\/p>\n<p>A headache may appear as a sharp pain, a throbbing sensation or a dull ache. Headaches can develop gradually or suddenly, and may last from less than an hour to several days.<\/p>\n<p>Your headache symptoms can help your doctor determine its cause and the appropriate treatment. Most headaches aren&#8217;t the result of a serious illness, but some may result from a life-threatening condition requiring emergency care.<\/p>\n<p>Headaches are generally classified by cause:<\/p>\n<h3>Primary headaches<\/h3>\n<p>A primary headache is caused by overactivity of or problems with pain-sensitive structures in your head. A primary headache isn&#8217;t a symptom of an underlying disease.<\/p>\n<p>Chemical activity in your brain, the nerves or blood vessels surrounding your skull, or the muscles of your head and neck (or some combination of these factors) can play a role in primary headaches. Some people may also carry genes that make them more likely to develop such headaches.<\/p>\n<p>The most common primary headaches are:<\/p>\n<ul>\n<li>Cluster headache <\/li>\n<li>Migraine <\/li>\n<li>Migraine with aura <\/li>\n<li>Tension headache <\/li>\n<li>Trigeminal autonomic cephalalgia (TAC), such as cluster headache and paroxysmal hemicrania<\/li>\n<\/ul>\n<p>A few headache patterns also are generally considered types of primary headache, but are less common. These headaches have distinct features, such as an unusual duration or pain associated with a certain activity.<\/p>\n<p>Although generally considered primary, each could be a symptom of an underlying disease. They include:<\/p>\n<ul>\n<li>Chronic daily headaches (for example, chronic migraine, chronic tension-type headache, or hemicranias continua)<\/li>\n<li>Cough headaches <\/li>\n<li>Exercise headaches <\/li>\n<li>Sex headaches <\/li>\n<\/ul>\n<p>Some primary headaches can be triggered by lifestyle factors, including:<\/p>\n<ul>\n<li>Alcohol, particularly red wine<\/li>\n<li>Certain foods, such as processed meats that contain nitrates<\/li>\n<li>Changes in sleep or lack of sleep<\/li>\n<li>\u60aa\u3044\u59ff\u52e2<\/li>\n<li>Skipped meals<\/li>\n<li>Stress.<\/li>\n<\/ul>\n<h3>Secondary headaches<\/h3>\n<p>A secondary headache is a symptom of a disease that can activate the pain-sensitive nerves of the head. Any number of conditions &mdash; varying greatly in severity &mdash; may cause secondary headaches.<\/p>\n<p>Possible causes of secondary headaches include:<\/p>\n<ul>\n<li>Acute sinusitis <\/li>\n<li>Arterial tears (carotid or vertebral dissections)<\/li>\n<li>Blood clot (venous thrombosis) within the brain \u2014 separate from stroke<\/li>\n<li>Brain aneurysm <\/li>\n<li>Brain AVM (arteriovenous malformation) <\/li>\n<li>Brain tumor <\/li>\n<li>Carbon monoxide poisoning <\/li>\n<li>Chiari malformation (structural problem at the base of your skull)<\/li>\n<li>Concussion <\/li>\n<li>Coronavirus disease 2019 (COVID-19) <\/li>\n<li>Dehydration &mdash; when the body doesn&#8217;t have enough water and other fluids to work as it should.<\/li>\n<li>Dental problems<\/li>\n<li>Ear infection (middle ear) <\/li>\n<li>Encephalitis (brain inflammation)<\/li>\n<li>Giant cell arteritis (inflammation of the lining of the arteries)<\/li>\n<li>Glaucoma (acute angle closure glaucoma)<\/li>\n<li>Hangovers <\/li>\n<li>High blood pressure (hypertension) <\/li>\n<li>Influenza (flu) and other febrile (fever) illnesses<\/li>\n<li>Intracranial hematoma <\/li>\n<li>Medications to treat other disorders<\/li>\n<li>Meningitis <\/li>\n<li>Monosodium glutamate (MSG)<\/li>\n<li>Overuse of pain medication<\/li>\n<li>Panic attacks and panic disorder <\/li>\n<li>Persistent post-concussive symptoms (Post-concussion syndrome) <\/li>\n<li>Pressure from tight headgear, such as a helmet or goggles<\/li>\n<li>Pseudotumor cerebri (idiopathic intracranial hypertension) <\/li>\n<li>\u8133\u5352\u4e2d <\/li>\n<li>Toxoplasmosis <\/li>\n<li>Trigeminal neuralgia (as well as other neuralgias, all involving irritation of certain nerves connecting the face and brain)<\/li>\n<\/ul>\n<p>Some types of secondary headaches include:<\/p>\n<ul>\n<li>Ice cream headaches (commonly called brain freeze)<\/li>\n<li>Medication overuse headaches (caused by overuse of pain medication)<\/li>\n<li>Sinus headaches (caused by inflammation and congestion in sinus cavities)<\/li>\n<li>Spinal headaches (caused by low pressure or volume of cerebrospinal fluid, possibly the result of spontaneous cerebrospinal fluid leak, spinal tap or spinal anesthesia)<\/li>\n<li>Thunderclap headaches (a group of disorders that involves sudden, severe headaches with multiple causes)<\/li>\n<\/ul>\n<h3>Seek emergency care<\/h3>\n<p>A headache can be a symptom of a serious condition, such as a stroke, meningitis or encephalitis.<\/p>\n<p>Go to a hospital emergency room or call 911 or your local emergency number if you&#8217;re experiencing the worst headache of your life, a sudden, severe headache or a headache accompanied by:<\/p>\n<ul>\n<li>Confusion or trouble understanding speech<\/li>\n<li>Fainting<\/li>\n<li>High fever, greater than 102 F to 104 F (39 C to 40 C)<\/li>\n<li>Numbness, weakness or paralysis on one side of your body<\/li>\n<li>Stiff neck<\/li>\n<li>Trouble seeing<\/li>\n<li>Trouble speaking<\/li>\n<li>Trouble walking<\/li>\n<li>Nausea or vomiting (if not clearly related to the flu or a hangover)<\/li>\n<\/ul>\n<h3>Schedule a doctor&#8217;s visit<\/h3>\n<p>See a doctor if you experience headaches that:<\/p>\n<ul>\n<li>Occur more often than usual<\/li>\n<li>Are more severe than usual<\/li>\n<li>Worsen or don&#8217;t improve with appropriate use of over-the-counter drugs<\/li>\n<li>Keep you from working, sleeping or participating in normal activities<\/li>\n<li>Cause you distress, and you would like to find treatment options that enable you to control them better<\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Headache: Symptom &mdash; Overview covers definition, possible causes of this painful symptom.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","tags":[1686,1685,1682,1684],"class_list":["post-52778","mayo","type-mayo","status-publish","hentry","tag-anatomical-structure","tag-condition","tag-person-group-concept","tag-theme-of-focus","content_type-symptoms"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Headache - Hancock Health<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.hancockhealth.org\/ja\/mayo-health-library\/headache\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Headache - Hancock Health\" \/>\n<meta property=\"og:description\" content=\"Headache: Symptom &mdash; 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