Millions of people around the world are living with high blood pressure without knowing it. There are no obvious warning signs, no pain, and often no symptoms at all. Yet if left unmanaged, it quietly damages your heart, brain, kidneys, and blood vessels over time. This is why high blood pressure is commonly referred to as the silent killer.
In this guide, we explain what high blood pressure is, how it is measured, what causes it, what symptoms to watch for, and how it is treated.
Blood pressure is defined as the force of blood pushing against the walls of your arteries as your heart pumps blood through your body. Your arteries are the blood vessels that carry blood from your heart to the rest of your body, supplying blood and oxygen to your organs, muscles, and tissues.
When the pressure on the artery walls becomes consistently too high, the condition is called high blood pressure, also known as hypertension. It means your heart is working harder than it should to pump enough blood through your body, and over time this extra strain can cause serious damage to your heart and other organs.
High blood pressure is one of the most common long-term health conditions in adults worldwide. Many people with high blood pressure live with it for years without any diagnosis simply because it produces no noticeable signs. If you suspect you may be at risk, speaking with an internal medicine specialist is the right first step for a thorough assessment.
Blood pressure is measured using two numbers written as a fraction, for example 120/80 mm Hg.
The top number is called systolic blood pressure. It measures the pressure in your blood vessels when your heart beats and pumps blood outward. The bottom number is called diastolic blood pressure. It measures the pressure in your arteries when your heart is resting between beats.
Blood pressure is considered normal when the systolic pressure is below 120 mm Hg and diastolic pressure is below 80 mm Hg. When your readings are consistently above these numbers, high blood pressure is diagnosed.
Here is how blood pressure ranges are generally classified:
Normal: Below 120/80 mm Hg
Elevated blood pressure: Systolic between 120 and 129 mm Hg
Stage 1 hypertension: Systolic 130 to 139 mm Hg or diastolic 80 to 89 mm Hg
Stage 2 hypertension: Systolic 140 mm Hg or higher, or diastolic 90 mm Hg or higher
Dangerously high (hypertensive crisis): Systolic above 180 mm Hg and/or diastolic above 120 mm Hg - this is a medical emergency
There are two main types of high blood pressure, and understanding the difference matters for how it is treated.
Primary hypertension develops gradually over many years with no single identifiable cause. It is the most common type and accounts for the vast majority of high blood pressure cases in adults. Primary hypertension is influenced by a combination of genetics, age, diet, and lifestyle factors.
Secondary hypertension is caused by an underlying medical condition such as kidney disease, thyroid problems, sleep apnea, or the use of certain medications. Secondary hypertension tends to appear more suddenly and often causes higher blood pressure levels than primary hypertension. Understanding the difference between primary and secondary hypertension is something our internal medicine doctors in Sohar assess during every hypertension consultation.
The cause of high blood pressure depends on its type. For primary hypertension, there is rarely one single cause. Instead, several factors for high blood pressure contribute to the gradual rise in pressure over time.
Common causes and risk factors include:
Age: Blood pressure tends to rise as we get older because blood vessels become stiffer
Family history: If close relatives have had hypertension, your risk increases
High salt intake: Excess sodium causes the body to retain fluid, raising blood pressure
Physical inactivity: A sedentary lifestyle weakens the heart and reduces blood flow efficiency
Obesity: Excess weight means the heart must work harder to pump enough blood and oxygen around the body
Smoking: Damages artery walls and causes blood pressure to spike
Chronic stress: Can cause repeated temporary spikes that over time develop into persistent high blood pressure
Excessive alcohol consumption: Raises blood pressure and interferes with blood pressure medication
Underlying conditions: Kidney disease, diabetes, and thyroid disorders are common causes of secondary hypertension
High blood pressure during pregnancy is also a recognized condition that requires careful monitoring and specialist management throughout the pregnancy period.
This is the most important thing to understand about hypertension. For most people with high blood pressure, there are absolutely no symptoms. Blood pressure is higher than it should be in millions of people who feel completely well. This is precisely why it is called the silent killer.
In cases where blood pressure reaches dangerously high levels, some people may experience:
Severe headaches
Blurred or changed vision
Chest pain or tightness
Difficulty breathing
Nausea
Nosebleeds
Dizziness or confusion
These symptoms typically appear only when blood pressure has become a crisis-level emergency. If you or someone near you experiences these symptoms with a very high blood pressure reading, seek immediate medical care. The absence of symptoms in everyday life is exactly why getting your blood pressure checked regularly is the only reliable way to know your status.
High blood pressure can damage the body silently over many years. The consistently elevated pressure on the artery walls causes them to weaken, stiffen, and narrow over time, reducing the flow of blood and oxygen to vital organs.
Caused by high blood pressure over time, the most serious complications include:
Heart disease and heart failure because the heart cannot pump enough blood efficiently when arteries are narrowed and stiff
Stroke caused by blocked or burst blood vessels in the brain
Kidney damage since the kidneys rely on healthy blood flow to filter waste, and high blood pressure can damage the arteries that supply blood to them
Vision loss from pressure in the blood vessels of the eyes
Aneurysm where weakened artery walls bulge and can rupture
High blood pressure increases the risk of all of the above conditions significantly when left without treatment. If you have been diagnosed with high blood pressure and have concerns about your heart health, our cardiology team in Sohar provides specialist assessment and ongoing care for patients with hypertension-related heart conditions.
The diagnosis of high blood pressure is straightforward. Blood pressure is measured using a cuff placed around the upper arm. The reading takes only a few seconds and is completely painless.
Because blood pressure fluctuates throughout the day, a single reading is not usually enough to confirm a diagnosis. Your doctor will typically take multiple readings on more than one visit. You may also be asked to monitor your blood pressure at home between visits to build a fuller picture.
In some cases, a 24-hour blood pressure monitor is used to track how blood pressure behaves throughout the day and night. If high blood pressure is diagnosed, your doctor will also assess whether secondary hypertension is present and whether the condition has already caused damage to your heart, kidneys, or other organs.
The treatment of high blood pressure depends on how high your readings are, whether there is an underlying cause, and your overall health. For most people, treatment involves a combination of lifestyle changes and, where needed, blood pressure medication.
For people with elevated blood pressure or Stage 1 hypertension, lifestyle changes alone can often be enough to lower blood pressure to a healthy range. These include:
Reducing salt intake in your daily diet
Eating more fruits, vegetables, and whole grains
Getting regular physical activity, even brisk walking for 30 minutes a day
Maintaining a healthy weight
Reducing or stopping alcohol consumption
Quitting smoking
Managing stress through rest, sleep, and relaxation
These changes not only help treat high blood pressure but also reduce your overall cardiovascular risk.
When lifestyle changes are not enough to lower blood pressure to the target blood pressure range, medication is prescribed. Common types of blood pressure medication used to lower blood pressure include diuretics, ACE inhibitors, calcium channel blockers, and beta-blockers.
It is important to take prescribed medication consistently and never change the dosage or stop treatment without speaking to your doctor. Managing high blood pressure with medication is a long-term commitment for most people, but it is highly effective at reducing the risk of serious complications.
Managing high blood pressure over the long term is about consistency. Here are the key habits for people diagnosed with high blood pressure:
Check your blood pressure regularly, either at a clinic or using a home blood pressure monitor
Take your medication as prescribed and never skip doses
Attend follow-up appointments so your doctor can track your progress and adjust treatment if needed
Keep a record of your readings at home and share them with your doctor
Maintain the lifestyle changes that helped bring your blood pressure down in the first place
The goal is to keep blood pressure at or below the target blood pressure set by your doctor, which for most adults is below 130/80 mm Hg.
High blood pressure is one of the most common and most manageable health conditions in adults, yet it remains widely undetected because it rarely causes obvious symptoms. The earlier it is diagnosed and treated, the lower your risk of serious complications including heart failure, stroke, and kidney damage.
Do not wait for symptoms to appear. If you have not had your blood pressure checked recently, or you have a family history of high blood pressure, now is the right time to act.
Contact us at Saada Hospital or call us on +968 22389999 to consult with one of our specialists today.
Marking a significant milestone, Saada Hospital in Suhar was officially inaugurated on Wednesday by Dr Hilal bin Ali al Sabti, Oman's Minister of Health.
Marking a significant milestone, Saada Hospital is thrilled to announce its official launch officially inaugurated on June 21, 2023. by H E Dr Hilal bin Ali Al Sabti, Minister of Health in Sohar.
Saada Hospital, a new beacon in Sohar’s healthcare landscape, is excited to announce its official partnerships with all major insurance companies in Oman, including OQIC, LIVA, Nextcare, Mednet, GIG, Metlife, and Greenline Insurance.
