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</a><h1 class="with-also" itemprop="name">High blood pressure in adults – hypertension</h1>
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</noscript></div><div class="main"><div id="ency_summary"><p>Blood pressure is a measurement of the force exerted against the walls of your arteries as your heart pumps blood to your body. Hypertension is the medical term used to describe high blood pressure.</p><p>Untreated high blood pressure can lead to many medical problems. These include heart disease, stroke, kidney failure, eye problems, and other health issues.</p><p>Blood pressure readings are given as two numbers. The top number is called systolic blood pressure. The bottom number is called diastolic blood pressure. For example, 120 over 80 (written as 120/80 mm Hg).</p><p>One or both of these numbers can be too high. (Note: These numbers apply to people who are not taking medicines for blood pressure and who are not ill.)</p><ul><li>Normal blood pressure is when your blood pressure is lower than 120/80 mm Hg most of the time.</li><li>High blood pressure (hypertension) is when one or both of your blood pressure readings are 130/80 mm Hg or higher most of the time.</li><li>If the top blood pressure number is from 120 to 129 mm Hg, and the bottom blood pressure number is less than 80 mm Hg, it is called elevated blood pressure.</li></ul><p>If you have heart or kidney problems, or you had a stroke, your health care provider may want your blood pressure to be even lower than that of people who do not have these conditions.</p></div><section><div class="section"><div class="section-header"><div class="section-title"><h2>Causes</h2></div><div class="section-button"><button type="submit" aria-controls="section-1" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-1"><p>Many factors can affect blood pressure, including:</p><ul><li>The amount of water and salt you have in your body</li><li>The condition of your kidneys, nervous system, or blood vessels</li><li>Your hormone levels</li></ul><p>You are more likely to be told your blood pressure is too high as you get older. This is because your blood vessels become stiffer as you age. When that happens, your blood pressure goes up. High blood pressure increases your chance of having a stroke, heart attack, heart failure, kidney disease, or early death.</p><p>You have a higher risk for high blood pressure if you:</p><ul><li>Are African American</li><li>Are obese</li><li>Are often stressed or anxious</li><li>Drink too much alcohol (more than 1 drink per day for women and more than 2 drinks per day for men)</li><li><a test="test" href="./002415.htm">Eat too much salt</a></li><li>Have a family history of high blood pressure</li><li>Have <a test="test" href="./001214.htm">diabetes</a></li><li>Smoke or use tobacco</li></ul><p>Most of the time, no cause of high blood pressure is found. This is called essential hypertension.</p><p>High blood pressure that is caused by another medical condition or medicine you are taking is called secondary hypertension. Secondary hypertension may be due to:</p><ul><li><a test="test" href="./000471.htm">Chronic kidney disease</a></li><li>Disorders of the adrenal gland (such as <a test="test" href="./000340.htm">pheochromocytoma</a> or <a test="test" href="./000410.htm">Cushing syndrome</a>)</li><li><a test="test" href="./001215.htm">Hyperparathyroidism</a></li><li>Pregnancy or <a test="test" href="./000898.htm">preeclampsia</a></li><li>Medicines such as birth control pills, diet pills, some cold medicines, migraine medicines, corticosteroids, some antipsychotics, and certain medicines used to treat cancer</li><li>Narrowed artery that supplies blood to the kidney (<a test="test" href="./000204.htm">renal artery stenosis</a>)</li><li><a test="test" href="./000811.htm">Obstructive sleep apnea</a> (OSA)</li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Symptoms</h2></div><div class="section-button"><button type="submit" aria-controls="section-2" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-2"><p>Most of the time, there are no symptoms. For most people, high blood pressure is found when they visit their provider or have it checked elsewhere.</p><p>Because there are no symptoms, people can develop heart disease and kidney problems without knowing they have high blood pressure.</p><p><a test="test" href="./000491.htm">Malignant hypertension</a> is a dangerous form of very high blood pressure. Symptoms may include:</p><ul><li>Severe <a test="test" href="./003024.htm">headache</a></li><li>Nausea and vomiting</li><li>Confusion</li><li>Vision changes</li><li>Nosebleeds</li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Exams and Tests</h2></div><div class="section-button"><button type="submit" aria-controls="section-3" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-3"><p>Diagnosing high blood pressure early can help prevent heart disease, stroke, eye problems, and chronic kidney disease.</p><p>Your provider will <a test="test" href="./007490.htm">measure your blood pressure</a> several times before diagnosing you with high blood pressure. It is normal for your blood pressure to be different based on the time of day.</p><p>All adults over the age of 18 should have their blood pressure checked every year. More frequent measurements may be needed for those with a history of high blood pressure readings or those with risk factors for high blood pressure.</p><p>Blood pressure readings taken at home may be a better measure of your current blood pressure than those taken at your provider's office.</p><ul><li>Make sure you get a good quality, well-fitting <a test="test" href="./007482.htm">home blood pressure monitor</a>. It should have a properly sized cuff and a digital readout.</li><li>Practice with your provider to make sure you are taking your blood pressure correctly.</li><li>You should be relaxed and seated for five or more minutes prior to taking a reading.</li><li>Bring your home monitor to your appointments so your provider can make sure it is working correctly.</li></ul><p>Your provider will do a physical exam to look for signs of heart disease, damage to your eyes, and other changes in your body.</p><p>Tests may also be done to look for:</p><ul><li><a test="test" href="../patientinstructions/000386.htm">High cholesterol level</a></li><li>Heart disease, using tests such as an <a test="test" href="./003869.htm">echocardiogram</a> or <a test="test" href="./003868.htm">electrocardiogram</a></li><li>Kidney disease, using tests such as a <a test="test" href="./003462.htm">basic metabolic panel</a> and <a test="test" href="./003579.htm">urinalysis</a> or ultrasound of the kidneys</li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Treatment</h2></div><div class="section-button"><button type="submit" aria-controls="section-4" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-4"><p>The goal of treatment is to reduce your blood pressure so that you have a lower risk of health problems caused by high blood pressure. You and your provider should set a blood pressure goal for you.</p><p>Whenever thinking about the best treatment for high blood pressure, you and your provider must consider other factors such as:</p><ul><li>Your age</li><li>The medicines you take</li><li>Your risk of side effects from possible medicines</li><li>Other medical conditions you may have, such as a history of heart disease, stroke, kidney problems, or diabetes</li></ul><p>If the top blood pressure number is from 120 to 129 mm Hg, and the bottom blood pressure number is less than 80 mm Hg, you have what is called elevated blood pressure.</p><ul><li>Your provider will recommend lifestyle changes to bring your blood pressure down to a normal range.</li><li>Medicines are rarely used at this stage.</li></ul><p>If your blood pressure is 130/80 or higher, but lower than 140/90 mm Hg, you have Stage 1 high blood pressure. When thinking about the best treatment, you and your provider must consider:</p><ul><li>If you have no other diseases or risk factors for heart or kidney disease, your provider may recommend lifestyle changes and repeat the measurements after a few months.</li><li>If your blood pressure remains 130/80 or above, but lower than 140/90 mm Hg, your provider may recommend medicines to treat high blood pressure.</li><li>If you have other diseases or risk factors for heart or kidney disease, your provider may be more likely to recommend medicines at the same time as lifestyle changes.</li></ul><p>If your blood pressure is 140/90 mm Hg or higher, you have Stage 2 high blood pressure. Your provider will most likely recommend medicines and lifestyle changes together.</p><p>Before making a final diagnosis of either elevated blood pressure or high blood pressure, your provider should ask you to have your blood pressure measured at home, at your pharmacy, or somewhere else besides their office or a hospital.</p><p>LIFESTYLE CHANGES</p><p>You can do many things to help control your blood pressure, including:</p><ul><li>Eat a <a test="test" href="./007483.htm">heart-healthy diet</a>, including potassium and fiber.</li><li>Drink plenty of water.</li><li>Get at least 40 minutes of moderate to vigorous aerobic exercise at least 3 to 4 days a week.</li><li>If you smoke or use tobacco, quit.</li><li>Limit how much alcohol you drink to 1 drink a day for women, and 2 drinks a day for men or less and consider quitting entirely.</li><li>Limit the amount of sodium (salt) you eat. Aim for less than 1,500 mg per day of sodium.</li><li>Reduce stress. Try to avoid things that cause you stress, and try meditation or yoga to de-stress.</li><li>Stay at a healthy body weight.</li></ul><img title="Lifestyle changes" alt="Lifestyle changes" src="//medlineplus.gov/ency/images/ency/fullsize/18167.jpg" class="img-e" itemprop="image"/><p>Your provider can help you find programs for losing weight, stopping smoking, and exercising.</p><p>You can also get a referral to a dietitian, who can help you plan a diet that is healthy for you.</p><p>How low your blood pressure should be and at what level you need to start treatment is individualized, based on your age and any medical problems you have.</p><p>MEDICINES FOR HYPERTENSION</p><p>Most of the time, your provider will suggest you try lifestyle changes first, and check your blood pressure two or more times. Medicines will likely be recommended if your blood pressure readings remain at or above these levels:</p><ul><li>Top number (systolic pressure) of 130 or more</li><li>Bottom number (diastolic pressure) of 80 or more</li></ul><p>If you have diabetes, heart problems, or a history of a stroke, medicines may be started at lower blood pressure reading. The most commonly used blood pressure targets for people with these medical problems are below 120 to 130/80 mm Hg.</p><p>There are many different <a test="test" href="./007484.htm">medicines to treat high blood pressure</a>.</p><ul><li>Often, a single blood pressure medicine may not be enough to control your blood pressure, and you may need to take two or more medicines.</li><li>It is very important that you take the medicines prescribed to you.</li><li>If you have side effects, your provider can substitute a different medicine.</li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Outlook (Prognosis)</h2></div><div class="section-button"><button type="submit" aria-controls="section-5" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-5"><p>Most of the time, high blood pressure can be controlled with medicine and lifestyle changes.</p><p>When blood pressure is not well-controlled, you are at risk for:</p><ul><li>Bleeding from the aorta, the large blood vessel that supplies blood to the abdomen, pelvis, and legs</li><li><a test="test" href="./000471.htm">Chronic kidney disease</a></li><li>Heart attack and <a test="test" href="./000158.htm">heart failure</a></li><li>Poor blood supply to the legs</li><li><a test="test" href="./000999.htm">Problems with your vision</a></li><li><a test="test" href="../patientinstructions/000341.htm">Stroke</a></li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>When to Contact a Medical Professional</h2></div><div class="section-button"><button type="submit" aria-controls="section-6" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-6"><p>If you have high blood pressure, you should have regular checkups with your provider.</p><p>Even if you have not been diagnosed with high blood pressure, it is important to have your blood pressure checked during your regular check-up, especially if someone in your family has or had high blood pressure.</p><p>Contact your provider right away if home monitoring shows that your blood pressure is still high.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Prevention</h2></div><div class="section-button"><button type="submit" aria-controls="section-7" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-7"><p>Many people can prevent or delay high blood pressure from occurring by following lifestyle changes designed to bring blood pressure down.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Alternative Names</h2></div><div class="section-button"><button type="submit" aria-controls="section-Alt" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>References</h2></div><div class="section-button"><button type="submit" aria-controls="section-Ref" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-Ref"><p>American Diabetes Association website. 10. Cardiovascular Disease and Risk Management: Standards of Medical Care in Diabetes-2024. <em>Diabetes Care</em>. 2024;47(Suppl 1):S179-S218. PMID: 38078592 <a href="https://pubmed.ncbi.nlm.nih.gov/38078592/" target="_blank">pubmed.ncbi.nlm.nih.gov/38078592/</a>.</p><p>Arnett DK, Blumenthal RS, Albert MA, et al. 2019 ACC/AHA guideline on the primary prevention of cardiovascular disease: a report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines. <em>Circulation</em>. 2019;140(11);e596-e646. PMID: 30879355 <a href="https://pubmed.ncbi.nlm.nih.gov/30879355/" target="_blank">pubmed.ncbi.nlm.nih.gov/30879355/</a>.</p><p>Bakris GL, Sorrentino MJ. Systemic hypertension: mechanisms, diagnosis and treatment. In: Libby P, Bonow RO, Mann DL, Tomaselli GF, Bhatt DL, Solomon SD, eds. <em>Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine</em>. 12th ed. Philadelphia, PA: Elsevier; 2022:chap 26.</p><p>Flack JM. Arterial hypertension. In: Goldman L, Cooney KA, eds. <em>Goldman-Cecil Medicine</em>. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 64.</p><p>Unger T, Borghi C, Charchar F, et al. 2020 International Society of Hypertension global hypertension practice guidelines. <em>J Hypertens</em>. 2020;38(6):982-1004. PMID: 32371787 <a href="https://pubmed.ncbi.nlm.nih.gov/32371787/" target="_blank">pubmed.ncbi.nlm.nih.gov/32371787/</a>.</p><p>Whelton PK, Carey RM, Aronow WS, et al. 2017 ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC/NMA/PCNA guideline for the prevention, detection, evaluation, and management of high blood pressure in adults: a report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines. <em>Hypertension</em>. 2018;71(6):1269-1324. PMID: 29133354 <a href="https://pubmed.ncbi.nlm.nih.gov/29133354/" target="_blank">pubmed.ncbi.nlm.nih.gov/29133354/</a>.</p></div></div></section>
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<section><div class="section sec-mb"><div class="section-header"><div class="section-title"><h2>Test Your Knowledge</h2></div><div class="section-button"><button type="submit" aria-controls="section-testyourknowledge" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div name="Test Your Knowledge" class="section-body" id="section-testyourknowledge"><ul class="side-nav"><li><a href="//medlineplus.gov/ency/quiz/000468_38.htm">Is High Blood Pressure Affecting Your Health?</a></li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Review Date 1/1/2023</h2></div><div class="section-button"><button type="submit" aria-controls="section-version" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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<div id="section-version" class="section-body"><p>Updated by: Michael A. Chen, MD, PhD, Associate Professor of Medicine, Division of Cardiology, Harborview Medical Center, University of Washington Medical School, Seattle, WA. Internal review and update on 02/19/2024 by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.</p>
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