How Often Should I Check My Blood Pressure?

The key is not to check as often as possible. It's to collect consistent readings that reveal a useful pattern.

4 June 2026 · 6 min read

How often you should check your blood pressure depends on why you're measuring it, what your readings look like, and for routine monitoring, your age.

The key is not to check as often as possible. It's to collect consistent readings that reveal a useful pattern.

The Singapore Heart Foundation provides a practical guide based on your reading level:

• Normal blood pressure (below 130/85 mmHg): measure once every two years
• Borderline high (130–139 / 85–89 mmHg): measure at least once a year
• High blood pressure (above 140/90 mmHg): measure at least once a week

If a healthcare professional asks you to monitor at home, you may be asked to measure more frequently for a period of time.

For general population screening, blood pressure checks are recommended from age 18. For adults aged 40 and above, regular blood pressure measurement is advised as part of routine health screening.

When is the best time to check my blood pressure?

Consistency matters.

Blood pressure naturally changes throughout the day, so comparing a morning measurement today with an evening measurement tomorrow can make the trend harder to interpret.

If you've been asked to monitor at home, taking readings at similar times and under similar conditions can make comparisons more useful.

The Singapore Heart Foundation recommends measuring blood pressure in the morning, around 10 to 15 minutes after waking, before taking medication or eating. Blood pressure naturally rises in the early morning hours, so morning readings can capture a clinically relevant part of the daily pattern. Avoid smoking or drinking caffeine for at least 30 minutes beforehand, go to the bathroom before measuring, and sit comfortably with your back supported, feet flat on the floor, and arm rested at heart level.

Do I need to take more than one reading?

Yes. A single measurement can fluctuate.

When home monitoring is being used to establish a pattern, the American Heart Association recommends taking two readings at least one minute apart and recording both.

The idea is not to keep measuring until you get the number you want. It is to collect readings consistently enough to provide a more representative picture.

What should I record besides the number?

At minimum, record:

Date + time + systolic reading + diastolic reading

But context can sometimes make the record more useful.

For example, you may want to know whether readings changed during the same period that your activity, weight, sleep, medication, or other health information changed.

That doesn't mean those factors caused the blood-pressure change. It simply provides additional context that can be useful when reviewing the pattern with a healthcare professional.

If you've been keeping a log of your readings, you can add it to your health locker in the Genie app alongside your health screening reports and wearable data such as activity, sleep and resting heart rate. With Ask Genie, you can explore your readings in relation to your broader health picture, including your biomarkers, lifestyle patterns and how they may connect.

For example: "Looking at my blood pressure readings along with my health reports, activity and sleep data, are there any patterns worth discussing with my doctor?"

Why the pattern matters more than any single reading

Imagine these readings:

Monday: 128/81 Tuesday: 135/84 Wednesday: 126/80 Thursday: 130/82

It can be tempting to ask why Tuesday was higher.

But blood pressure varies naturally throughout the day. The American Heart Association describes a single measurement as a snapshot, while a record of readings provides a more complete picture. The more useful question is often not what caused one higher reading, but what the overall pattern looks like over days and weeks.

A consistent record of readings, taken under similar conditions, gives your healthcare professional direction to work with.

Can home readings and clinic readings be different?

Some people have higher readings in a clinical setting because of nervousness or anxiety, sometimes referred to as white-coat hypertension.

The reverse can also occur. Some people have normal readings in the clinic but higher readings at home or during daily life. This is sometimes called masked hypertension - a situation where office blood pressure appears normal, but out-of-office measurements are elevated. Because these higher readings don't show up during clinic visits, home monitoring or ambulatory monitoring can be important for detecting them.

Singapore's HealthHub explains that ambulatory blood-pressure monitoring can measure blood pressure at intervals throughout normal daily life and give a doctor additional information about the pattern.

A healthcare professional can determine whether home or ambulatory monitoring is appropriate.

What to do if I get a very high reading?

A single unexpected high reading can be repeated after a short interval.

If blood pressure is higher than 180/120 mmHg, the American Heart Association recommends waiting at least one minute and measuring again. If it remains that high, contact a healthcare professional.

If a reading above 180/120 occurs with symptoms such as chest pain, shortness of breath, numbness, weakness, vision changes or difficulty speaking, seek emergency medical care.

If you've had several elevated readings recently but they're not in the emergency range, monitoring more closely for a period is advisable.

The Singapore Heart Foundation recommends that people with high blood pressure (above 140/90 mmHg) measure at least once a week, while those with borderline readings (130–139 / 85–89 mmHg) should check at least once a year.

Keeping a short log of readings taken at consistent times, such as morning and evening over several days, can help your healthcare professional assess whether the pattern warrants further investigation or a change in management.

Note: This content is for general informational purposes only and is not medical advice, diagnosis or treatment. It does not replace consultation with a qualified healthcare professional. If you have concerns about your heart health, please consult a qualified physician.

Read Next: When Should I See a Doctor About High Blood Pressure?

You might also like

Health is the New Flex

In Singapore, 8 out of 10 lives are lost to chronic diseases. The smartest move is clear: prevent problems before they start.

Preventive Care · 4 September 2025 · 3 min read

The hidden cost of burnout: why doctors need Genies too

Healthcare professionals are among the most data-literate people on the planet — yet they are often the last to apply that rigour to their own health.

Preventive Care · 10 June 2025 · 4 min read

My Blood Pressure Has Gone Up. What Could Be Causing It?

There are many reasons you might get a higher-than-usual blood pressure reading, and one high reading doesn't necessarily mean you have high blood pressure.

Preventive Care · 1 June 2026 · 7 min read