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Overview
What Is Hypertension?
Hypertension, also called high blood pressure, means that pressure remains higher than healthy levels inside the arteries. It can affect adults of all backgrounds and may develop at any age. Because hypertension often causes no noticeable symptoms, a blood pressure measurement is the main way to identify it. Over time, untreated high pressure can strain blood vessels and important organs.
Symptoms
Hypertension Symptoms
Hypertension usually has no warning symptoms, so you should not rely on how you feel to judge your blood pressure. Regular measurement is important, especially if you have risk factors or a previous elevated reading. Symptoms are more likely to occur when blood pressure is severely elevated or has caused a complication.
- Severe headache
- Blurred or changed vision
- Chest pain
- Shortness of breath
- Confusion
- Weakness or numbness
- Nosebleed
SEEK URGENT HELP
Severe symptoms need prompt attention
Ordinary hypertension is often silent, but severe symptoms such as chest pain, trouble breathing, confusion, weakness, or vision changes may signal a hypertensive emergency or another serious problem. Seek urgent or emergency medical care, particularly when these symptoms occur with a very high reading.
Causes
Causes of Hypertension
Most cases are primary hypertension, which develops gradually from several interacting influences rather than one identifiable cause. Inherited traits, age, blood vessel changes, diet, activity level, weight, stress, and other environmental factors may all contribute. This combination helps explain why hypertension high blood pressure can affect people with different health backgrounds.
Secondary hypertension and underlying causes
Secondary hypertension is high blood pressure caused by another condition, medicine, or substance. Possible contributors include kidney disease, hormone disorders, sleep apnea, certain medicines, and some recreational or stimulant substances. Treating the underlying cause or changing a contributing medicine under medical supervision may improve blood pressure.
Risk Factors
Risk Factors for Hypertension
| Nonmodifiable factors | Modifiable or potentially modifiable factors |
|---|---|
| Older age | High-sodium eating pattern |
| Family history or genetic factors | Physical inactivity |
| Some racial or ethnic backgrounds | Excess weight, alcohol use, or tobacco use |
| Certain medical conditions | Stress, sleep problems, or medication-related factors |
Having one or more risk factors does not guarantee that you will develop hypertension high blood pressure. Healthy changes, such as improving eating habits, becoming more active, and avoiding tobacco, can lower risk even when age or family history cannot be changed.
Complications
Complications of Hypertension
Prolonged high pressure can injure artery walls and make the heart work harder. This damage can develop gradually, even when a person feels well, and may affect the heart, brain, kidneys, eyes, and blood vessels.
- Heart attack and other heart disease
- Heart failure
- Stroke
- Chronic kidney disease
- Vision loss
- Cognitive impairment
Diagnosis
How Hypertension Is Diagnosed
A clinician measures systolic pressure, the pressure when the heart beats, and diastolic pressure, the pressure between beats, using a properly sized arm cuff. Readings are interpreted using current clinical thresholds and the person’s overall health. Correct positioning, a period of rest, and repeated measurements help make results more reliable.
Confirming the diagnosis
Hypertension is usually confirmed with readings from more than one occasion rather than one isolated result. Home monitoring or ambulatory monitoring may be recommended to compare readings in everyday settings. These methods can help identify white-coat hypertension, which occurs mainly in medical settings, or masked hypertension, which may not appear during a clinic visit.
Tests for causes and organ effects
The evaluation may include a medical history, physical examination, and blood or urine tests. Depending on the findings, other studies may check for secondary causes or signs of effects on the heart, kidneys, eyes, or blood vessels.
Treatment & Management
Treatment and Management of Hypertension
Treatment goals depend on a person’s readings, age, overall health, cardiovascular risk, and other conditions. Management is usually ongoing and may combine lifestyle changes, prescription medicine, home readings, and regular follow-up. Your clinician can help set goals and adjust the plan as your needs change.
LIFESTYLE CHANGES
Sustainable habits can lower blood pressure and improve overall cardiovascular health. These may include reducing sodium, being physically active, managing weight, limiting alcohol, avoiding tobacco, and improving sleep.
BLOOD PRESSURE MEDICINES
Clinicians may prescribe one or more medicines and adjust them based on your response, side effects, and other health conditions. Different medicines work in different ways, so treatment is individualized.
Prevention & Screening
Hypertension Prevention and Screening
- Choose a balanced eating pattern that limits sodium and emphasizes vegetables, fruits, and whole foods.
- Be physically active at levels appropriate for your health.
- Maintain or work toward a healthy weight.
- Limit alcohol and avoid tobacco products.
- Get adequate sleep and manage stress in healthy ways.
- Take prescribed medicines and manage conditions that raise blood pressure.
Blood pressure should be checked regularly during healthcare visits because hypertension often has no symptoms. People with elevated readings or risk factors may need more frequent home or ambulatory monitoring. Ask a clinician how often you should be checked based on your age, health history, readings, and whether you are an adult or child.
Outlook and Prognosis
Outlook and Prognosis for Hypertension
Hypertension is often chronic, but it can usually be controlled with lifestyle changes, medication when needed, and regular monitoring. A person may feel well while high blood pressure is increasing health risks, so treatment should continue even when symptoms are absent. Consistent follow-up helps maintain control and lower the chance of long-term complications.
When Should You See a Doctor
When Should You See a Doctor for Hypertension?
- Schedule an evaluation if repeated readings are higher than the range recommended by your clinician.
- Contact your clinician if your readings remain high despite treatment or if medicines cause concerning side effects.
- Ask for medical advice if you are pregnant or planning pregnancy and have high blood pressure.
- Seek prompt care for new chest pain, shortness of breath, severe headache, confusion, weakness, or vision changes.
EMERGENCY WARNING
Get emergency help for severe symptoms
If you have a very high reading along with severe symptoms such as chest pain, trouble breathing, confusion, weakness, or vision changes, contact local emergency services immediately. Do not wait for the symptoms to resolve on their own.
