Hypertension: Symptoms & Treatment
High blood pressure, also called hypertension, is one of the most important cardiovascular health problems worldwide. It can develop without obvious symptoms, yet over time it can damage the heart, brain, kidneys and blood vessels.
According to the World Health Organization (WHO), an estimated 1.4 billion adults aged 30–79 had hypertension in 2024. Many people do not know they have it because high blood pressure often causes no symptoms. World Health Organization
For this reason, checking your blood pressure regularly is one of the simplest ways to identify the problem early.
What Is Hypertension?
Blood pressure is the force of blood pushing against the walls of your arteries.
A blood pressure reading has two numbers:
- Systolic pressure — the pressure when the heart contracts.
- Diastolic pressure — the pressure when the heart relaxes between beats.
WHO defines hypertension in adults as blood pressure of 140/90 mmHg or higher, confirmed through measurements taken on different days. World Health Organization
However, different clinical guidelines may use additional thresholds depending on how blood pressure is measured and the person’s overall cardiovascular risk.
Why Is High Blood Pressure Dangerous?
The problem with hypertension is that it can remain unnoticed while gradually damaging important organs.
Uncontrolled hypertension can increase the risk of:
- Heart disease
- Heart failure
- Stroke
- Kidney disease
- Vision problems
- Blood-vessel damage
- Irregular heart rhythms
The longer blood pressure remains uncontrolled, the greater the potential for complications. World Health Organization
That is why treatment focuses not only on lowering a blood pressure number but also on reducing the person’s overall cardiovascular risk.
What Causes Hypertension?
There is not always one identifiable cause.
Several factors can increase the likelihood of developing high blood pressure, including:
- Family history
- Increasing age
- Excess body weight
- Physical inactivity
- High salt intake
- Unhealthy dietary patterns
- Tobacco use
- Excessive alcohol consumption
- Diabetes
- Kidney disease
Some people also develop hypertension because of another medical condition or medication. This is sometimes called secondary hypertension.
Symptoms of Hypertension
One of the most important things to understand about hypertension is that most people do not feel symptoms.
You can have significantly elevated blood pressure and still feel completely normal.
Therefore, headaches or dizziness should not be used as a substitute for checking your blood pressure. The only reliable way to know whether your blood pressure is elevated is to measure it. World Health Organization
How Is Hypertension Diagnosed?
A single high reading does not always establish a diagnosis.
NICE recommends that when clinic blood pressure is 140/90 mmHg or higher, another measurement should be taken during the consultation. Depending on the result, ambulatory or home blood pressure monitoring may then be used to confirm hypertension. Nice
Home Blood Pressure Monitoring
Home monitoring can provide a more complete picture of blood pressure outside the clinic.
NICE recommends taking two consecutive readings, at least one minute apart, twice a day over several days when home monitoring is being used to confirm hypertension. Nice
A healthcare professional can explain how to use an appropriate validated blood pressure monitor correctly.
What Tests Are Needed After Diagnosis?
Hypertension does not only affect the blood pressure reading. Healthcare professionals may also look for evidence of organ damage and other cardiovascular risk factors.
NICE recommends assessments that can include:
- Urine testing
- Kidney-function blood tests
- Blood glucose or HbA1c
- Cholesterol testing
- Eye examination
- Electrocardiogram (ECG)
These checks help healthcare professionals understand a person’s overall cardiovascular risk and whether hypertension may already have affected other organs. Nice
Treatment for Hypertension
Treatment usually combines lifestyle changes with medication when medication is clinically indicated.
The exact treatment plan depends on the person’s blood pressure, age, other medical conditions, cardiovascular risk and response to treatment.
WHO recommends lifestyle measures for people with hypertension, while some people also require one or more medicines. World Health Organization
Lifestyle Changes That Can Help
Lifestyle changes remain an important part of hypertension management, even when medication is prescribed.
Reduce Excess Salt
Eating too much salt can contribute to high blood pressure.
Choosing fresh foods more often and reducing heavily salted and highly processed foods can help reduce sodium intake.
Eat More Fruits and Vegetables
A balanced diet containing vegetables, fruits and other nutrient-rich foods can support cardiovascular health.
The goal is not a temporary diet. Instead, aim for eating habits that can be maintained over time.
Stay Physically Active
Regular physical activity can help lower blood pressure and improve cardiovascular health.
Walking, cycling, swimming and other appropriate activities can all contribute to a more active lifestyle.
WHO recommends regular physical activity as part of hypertension prevention and management. World Health Organization
Maintain a Healthy Weight
For people who are overweight or living with obesity, weight reduction can help lower blood pressure.
However, weight management should focus on overall health rather than rapid or extreme weight loss.
Avoid Tobacco
Smoking and other tobacco use increase cardiovascular risk.
Stopping tobacco use can therefore provide benefits beyond blood pressure control.
Limit Excessive Alcohol
Excessive alcohol consumption can contribute to elevated blood pressure and other cardiovascular risks.
Reducing alcohol intake can therefore be part of a healthier cardiovascular lifestyle. World Health Organization
Medicines Used to Treat Hypertension
When medication is needed, healthcare professionals can choose from several groups of blood-pressure medicines.
Common categories include:
- ACE inhibitors
- Angiotensin receptor blockers (ARBs)
- Calcium-channel blockers
- Diuretics
- Other medicines in selected circumstances
WHO identifies ACE inhibitors, ARBs, calcium-channel blockers and diuretics among the commonly used blood-pressure medicines. World Health Organization
The choice depends on the person’s circumstances. There is no single hypertension medicine that is best for everyone.
Hypertension Medicines Listed by HubPharm
The HubPharm cardiovascular-care page identifies several medicines within its Hypertension (High Blood Pressure)category.
These include medicines from several major treatment groups, such as:
These medicines should not be treated as interchangeable. The appropriate treatment depends on the individual’s diagnosis, other health conditions, current medicines and healthcare professional’s assessment.
Why You Should Not Stop Blood Pressure Medicine Suddenly
Hypertension is usually a long-term condition.
Feeling well does not necessarily mean that the condition has disappeared. In fact, many people with hypertension feel completely normal even when their blood pressure remains elevated.
For that reason, prescribed treatment should not be stopped, reduced or changed without discussing it with the healthcare professional managing the condition.
WHO specifically advises people with hypertension to take medicines as prescribed and keep their healthcare appointments. World Health Organization
What If One Medicine Is Not Enough?
Some people need more than one medicine to achieve appropriate blood-pressure control.
NICE recommends reviewing adherence and treatment before moving to additional treatment. When blood pressure remains uncontrolled, combinations from different medicine groups may be used. Nice
This is one reason why hypertension treatment should be reviewed periodically rather than managed entirely by trial and error.
Hypertension in Younger Adults
High blood pressure can occur in younger adults too.
When hypertension occurs at a younger age, healthcare professionals may consider whether there is an underlying cause that needs investigation. NICE recommends considering specialist evaluation for secondary causes in adults under 40 who have hypertension. Nice
Therefore, a younger person with persistently elevated blood pressure should not simply assume that it is caused by stress.
Hypertension and Other Conditions
High blood pressure often occurs alongside other health conditions.
For example, diabetes and kidney disease can increase cardiovascular risk and can also affect decisions about blood-pressure treatment.
The treatment target may therefore differ depending on a person’s other health conditions. WHO notes that people with cardiovascular disease, diabetes, chronic kidney disease or high cardiovascular risk may have a lower blood-pressure target. World Health Organization
When Is High Blood Pressure an Emergency?
Very high blood pressure can sometimes require urgent medical attention, particularly when it occurs together with concerning symptoms.
WHO identifies symptoms associated with very high blood pressure that can include:
- Severe headache
- Chest pain
- Difficulty breathing
- Confusion
- Significant vision changes
- Nausea or vomiting
- Dizziness
A blood pressure reading around 180/120 mmHg or higher, particularly with concerning symptoms, requires urgent medical assessment. World Health Organization
If someone has severe chest pain, difficulty breathing, confusion, sudden neurological symptoms or significant vision changes, seek emergency medical care rather than waiting for a routine appointment.
Monitoring Hypertension Long Term
Managing hypertension does not end once the blood pressure improves.
Regular follow-up helps healthcare professionals assess:
- Blood-pressure control
- Medication response
- Side effects
- Lifestyle changes
- Cardiovascular risk
- Kidney and other organ health
NICE recommends an annual review for adults with hypertension to monitor blood pressure and discuss lifestyle, symptoms and medication. Nice
Hypertension Support at HubPharm
HubPharm’s cardiovascular-care service includes Hypertension (High Blood Pressure) and supports patients who have been prescribed cardiovascular medicines.
The focus is not simply on supplying medication. Long-term blood-pressure management also involves appropriate monitoring, understanding the treatment plan and maintaining consistent follow-up.
If you have been diagnosed with hypertension, a pharmacist can help you understand your prescribed treatment and identify questions that should be discussed with your healthcare professional.
Frequently Asked Questions
Can you have hypertension without symptoms?
Yes. Most people with hypertension do not experience noticeable symptoms. Regular blood-pressure checks are therefore important. World Health Organization
What blood pressure is considered high?
WHO defines hypertension in adults as blood pressure of 140/90 mmHg or higher when confirmed through measurements on different days. Clinical treatment thresholds and targets can vary according to the guideline and the individual’s health. World Health Organization
Can lifestyle changes lower blood pressure?
Yes. A healthier diet, lower salt intake, regular physical activity, maintaining a healthy weight and avoiding tobacco can help lower cardiovascular risk and blood pressure. World Health Organization
Do all people with hypertension need medicine?
Not necessarily. Treatment decisions depend on the blood-pressure level, cardiovascular risk, age and other medical conditions. Some people need lifestyle measures alone initially, while others need medication. Nice
Can hypertension be cured?
Some cases of secondary hypertension may improve when the underlying cause is treated. For most people with primary hypertension, however, long-term management is needed.
Can I stop my blood-pressure medicine when my reading becomes normal?
Do not stop or change prescribed treatment without speaking with your healthcare professional. A normal reading may mean that the treatment is working rather than that hypertension has disappeared.
How often should I check my blood pressure?
The appropriate frequency depends on your situation. People with diagnosed hypertension should follow the monitoring plan recommended by their healthcare professional.
The Bottom Line
Hypertension can be serious even when you feel completely well.
Regular blood-pressure checks help identify the condition early. Once diagnosed, treatment may involve lifestyle changes, medication or a combination of both.
The medicines shown in HubPharm’s hypertension category represent several different treatment groups, but the right medicine depends on the individual’s health and clinical assessment.
Consistent monitoring and appropriate treatment can substantially reduce the risk of complications such as heart disease, stroke and kidney damage. World Health Organization
Medical note: This article is for general health education and does not replace individual medical advice, diagnosis or treatment.
References
- World Health Organization. Hypertension. Updated 25 September 2025. World Health Organization
- NICE. Hypertension in adults: diagnosis and management (NG136). Updated 26 February 2026. Nice
- World Health Organization. Guideline for the pharmacological treatment of hypertension in adults.