- Lipoprotein(a), or Lp(a), is an inherited cholesterol-carrying particle that can increase cardiovascular risk.
- You can have a normal-looking standard cholesterol test and still have elevated Lp(a).
- High Lp(a) usually causes no symptoms, which is why many people do not know they have this additional risk.
- Current guidelines recommend that adults have their Lp(a) measured at least once in their lifetime.
- Lp(a) can be particularly important if you have a family history of early heart attacks, strokes, or heart disease.
- People with elevated Lp(a) may need more intensive management of other cardiovascular risk factors, particularly LDL cholesterol.
- Lifestyle changes are extremely important for overall heart health, although diet and exercise generally have little effect on the Lp(a) number itself.
- A lipid-focused cardiovascular assessment can help determine what an elevated Lp(a) result means for your individual heart-health risk.
- If you live in Brampton, Mississauga, or Milton and have been told you have high cholesterol, unexplained cardiovascular risk, or a strong family history of heart disease, discussing Lp(a) testing with a cardiologist may be worthwhile.
What Is Lipoprotein(a)?
When most people hear the word cholesterol, they think about LDL, HDL, or triglycerides.
But there is another cholesterol-carrying particle that deserves attention: lipoprotein(a), commonly written as Lp(a) and pronounced “L-P little-a.”
Lp(a) is a lipoprotein in the bloodstream that is largely determined by genetics. Unlike many traditional cholesterol risk factors, your Lp(a) level is primarily inherited and tends to remain relatively stable throughout life.
The American Heart Association estimates that approximately 1 in 5 people worldwide have elevated Lp(a). Importantly, high Lp(a) usually does not produce noticeable symptoms. The only practical way to know your level is to have a blood test.
This is one reason Lp(a) can be so important in preventive cardiology.
You may feel completely healthy.
Your blood pressure may be acceptable.
Your regular cholesterol panel may not look particularly concerning.
And yet, you could have an inherited cardiovascular risk factor that has never been tested.
Can High Lipoprotein(a) Cause Symptoms?
Usually, no.
This is one of the most important things patients should understand about Lp(a).
Elevated Lp(a) itself generally does not cause symptoms such as chest pain, dizziness, shortness of breath, or palpitations. Instead, it can contribute to cardiovascular risk over many years.
High Lp(a) is associated with a greater risk of conditions such as:
- Coronary artery disease
- Heart attack
- Stroke
- Peripheral artery disease
- Aortic valve disease, including aortic stenosis
The risk can develop silently before a person notices anything is wrong.
That means waiting for symptoms before investigating cardiovascular risk may not be the best strategy for someone with a strong family history or other risk factors.
If you have experienced chest pressure, chest pain, unusual shortness of breath, unexplained exercise intolerance, fainting, or new symptoms during physical activity, those symptoms deserve medical evaluation regardless of your Lp(a) level.
If chest pain or pressure is severe, sudden, persistent, or associated with difficulty breathing, sweating, nausea, fainting, or pain spreading to the arm, jaw, back, or shoulder, seek emergency medical care rather than waiting for a routine cardiology appointment.
Why Can Someone Have Normal Cholesterol but Still Be at Risk?
A standard cholesterol test is valuable, but it does not tell the entire story.
A routine lipid panel generally includes measurements such as:
- Total cholesterol
- LDL cholesterol
- HDL cholesterol
- Triglycerides
However, Lp(a) is not normally included in a standard lipid panel. It requires a specific blood test.
This creates a situation that can be confusing for patients.
You may have been told:
“Your cholesterol isn’t that high.”
But if you have a strong family history of premature heart disease, an elevated Lp(a) level could provide additional information about your lifetime cardiovascular risk.
This is especially relevant when someone develops cardiovascular disease earlier than expected or when several family members have experienced heart attacks or strokes at relatively young ages.
Who Should Consider an Lp(a) Test?
Current guidance has moved toward broader Lp(a) screening.
The 2026 ACC/AHA dyslipidemia guideline recommends measuring Lp(a) at least once in adulthood. The Canadian Cardiovascular Society also recommends measuring Lp(a) once in a person’s lifetime as part of initial lipid screening.
Testing may be particularly relevant if you have:
A Family History of Early Heart Disease
Did your parent, brother, sister, or another close relative have a heart attack or stroke at a relatively young age?
That history can be an important reason to discuss inherited cardiovascular risk with your physician.
A Personal History of Cardiovascular Disease
If you have already experienced a heart attack, coronary artery disease, stroke, or other vascular disease, measuring Lp(a) can help provide a more complete picture of your cardiovascular risk.
Familial Hypercholesterolemia
People with familial hypercholesterolemia, an inherited condition associated with very high LDL cholesterol, may benefit from Lp(a) assessment as part of a broader cardiovascular risk evaluation.
Unexpected Cardiovascular Risk
Some people have cardiovascular disease despite apparently favorable traditional risk factors.
In these situations, an advanced lipid assessment may help identify additional risk factors that a basic cholesterol panel does not capture.
What Does a High Lp(a) Result Mean?
The interpretation depends on the measurement units, the actual value, and your overall cardiovascular risk.
The 2026 ACC/AHA guideline identifies Lp(a) levels of 125 nmol/L or 50 mg/dL or higher as a risk-enhancing level. Levels of approximately 250 nmol/L or 100 mg/dL are associated with an even greater estimated long-term cardiovascular risk.
Canadian guidance has historically used 50 mg/dL or 100 nmol/L as an important threshold for intensifying cardiovascular risk-factor management.
Because Lp(a) can be reported in either mg/dL or nmol/L, patients should not assume that the two units can be converted using one universal mathematical formula.
Instead, your cardiologist should interpret the result using the laboratory’s reporting method and your complete clinical picture.
Is High Lp(a) Genetic?
Yes.
Lp(a) is strongly influenced by genetics, which means that an elevated result may run in families.
This is one reason a person with high Lp(a) may want to discuss testing with close relatives.
The American Heart Association notes that cascade screening, testing close family members of someone with elevated Lp(a)—can identify additional people who may have the same inherited risk factor.
For example, if you discover that your Lp(a) is significantly elevated, it may be appropriate to discuss whether your parents, siblings, or adult children should also be tested.
Can Diet and Exercise Lower Lipoprotein(a)?
This is where Lp(a) is different from many other cardiovascular risk factors.
Healthy lifestyle habits remain extremely important, but diet and exercise generally do not substantially lower the Lp(a) level itself.
That does not mean lifestyle changes are unimportant.
If you have high Lp(a), controlling the other modifiable risk factors becomes especially important.
This may include:
- Improving your overall diet
- Exercising regularly
- Maintaining a healthy weight
- Managing blood pressure
- Controlling diabetes when present
- Avoiding tobacco
- Improving sleep
- Managing LDL cholesterol
- Addressing other cardiovascular risk factors
Think of Lp(a) as one part of your overall cardiovascular risk profile.
You may not be able to significantly change the inherited Lp(a) number, but you can often change many of the other factors that influence your lifetime risk.
What Happens If My Lp(a) Is High?
A high Lp(a) result does not automatically mean that you are going to have a heart attack or stroke.
Instead, it tells your physician that your cardiovascular risk may need to be assessed more carefully.
The goal is to look at the complete picture.
Your cardiologist may consider:
- LDL cholesterol
- Non-HDL cholesterol
- ApoB when appropriate
- Blood pressure
- Diabetes or blood sugar status
- Smoking history
- Family history
- Previous heart or vascular disease
- Age and other risk factors
- Overall lifetime cardiovascular risk
- Additional testing when clinically appropriate
The 2026 ACC/AHA guideline specifically emphasizes more intensive LDL-lowering and management of other cardiovascular risk factors when Lp(a) is elevated.
In other words, the objective is not simply to chase a single laboratory number.
The objective is to reduce your overall risk of cardiovascular events.
Are There Medications That Lower Lp(a)?
Research into treatments specifically targeting Lp(a) is evolving.
At present, there is not a broadly approved medication whose sole purpose is to lower Lp(a) and whose use is established as standard therapy for every person with elevated Lp(a). However, certain lipid-lowering therapies can influence Lp(a) to varying degrees, and medications may be used to aggressively manage other lipid-related risks when appropriate.
For example, PCSK9 inhibitors can lower both LDL cholesterol and Lp(a) in some patients.
Treatment decisions should therefore be individualized.
If you have high Lp(a), the question is generally not simply:
“How do I lower this one number?”
A more useful question is:
“What can we do to reduce my overall lifetime risk of heart attack, stroke, and cardiovascular disease?”
That distinction is important.
Why a Lipid Clinic Assessment May Be Helpful
A lipid clinic or cardiology consultation can be particularly useful when your cholesterol results do not seem to match your personal or family history.
You may want to discuss an advanced cardiovascular risk assessment if:
- You have high cholesterol despite lifestyle changes.
- You have a strong family history of heart attacks or strokes.
- A close relative had cardiovascular disease at a young age.
- You have been diagnosed with familial hypercholesterolemia.
- You have already had a heart attack or stroke.
- Your LDL cholesterol appears acceptable but your overall cardiovascular risk remains concerning.
- You have been told that your Lp(a) is high and are unsure what the result means.
- You want a more comprehensive approach to preventing cardiovascular disease.
Dr. Sunny Malhotra’s practice provides cardiology and lipidology care, including advanced lipid management for patients in Mississauga, Brampton, Milton, and surrounding communities. The practice’s existing advanced lipid program addresses markers such as ApoB and Lp(a) as part of a broader cardiovascular risk assessment.
Lipoprotein(a) in Brampton, Mississauga & Milton
If you live in Brampton, Mississauga, or Milton, you do not necessarily need to wait until you develop obvious heart symptoms to start thinking about cardiovascular prevention.
A family history of early heart disease can be a reason to investigate inherited risk.
An unexpectedly high cholesterol result can be a reason to look more closely.
A previous heart attack or stroke can be a reason to consider whether additional inherited risk factors are present.
And even if you feel completely healthy, Lp(a) may still be worth discussing because elevated Lp(a) commonly produces no symptoms.
A single Lp(a) blood test can provide information that may remain useful for many years because Lp(a) is largely genetically determined and relatively stable over a lifetime.
What Should You Ask Your Cardiologist About Lp(a)?
Consider asking:
- Have I ever had my Lp(a) measured?
- Is my Lp(a) reported in mg/dL or nmol/L?
- Is my level considered elevated?
- Does my family history suggest inherited cardiovascular risk?
- What is my LDL cholesterol goal based on my overall risk?
- Should ApoB or other advanced lipid testing be considered?
- Do I need additional cardiovascular testing?
- Should close family members be tested for Lp(a)?
- What can I do to reduce my overall cardiovascular risk?
- Do my current symptoms or medical history warrant a cardiology assessment?
These questions can turn a confusing cholesterol report into a more meaningful cardiovascular prevention plan.
Conclusion
Lipoprotein(a) is one of the lesser-known cardiovascular risk factors, but it is becoming increasingly important in modern lipid management.
The most important thing to remember is that high Lp(a) usually does not cause symptoms. You cannot reliably tell whether your Lp(a) is high based on how you feel. A specific blood test is needed.
Because Lp(a) is largely inherited, knowing your level can be especially valuable if you have a strong family history of premature heart disease, stroke, or unexplained cardiovascular events.
Current guidelines support measuring Lp(a) at least once in adulthood, and Canadian guidance recommends once-in-a-lifetime testing as part of initial lipid screening.
If your Lp(a) is elevated, it does not mean that a heart attack is inevitable. Instead, it provides an opportunity to take your cardiovascular prevention more seriously—particularly by addressing LDL cholesterol, blood pressure, diabetes, smoking, weight, physical activity, diet, and other modifiable risk factors.
If you have been told you have high Lp(a), high cholesterol, a strong family history of heart disease, or unexplained cardiovascular risk, consider discussing your results with a cardiologist experienced in lipid management.
Patients in Brampton, Mississauga, Milton, and surrounding areas can learn more about cardiology and lipidology services through Dr. Sunny Malhotra’s practice.
Frequently Asked Questions About Lipoprotein(a)
1. What is Lipoprotein(a)?
Lipoprotein(a), or Lp(a), is a cholesterol-carrying lipoprotein in the blood. Its level is largely determined by genetics and can contribute to cardiovascular risk when elevated.
2. Does high Lp(a) cause symptoms?
Usually not. High Lp(a) is generally silent. It can increase cardiovascular risk without causing noticeable symptoms, which is why testing is important.
3. How do I know if my Lp(a) is high?
A specific blood test is required. Lp(a) is not normally included in a standard cholesterol panel.
4. Should everyone have an Lp(a) test?
Current ACC/AHA guidance recommends that every adult have Lp(a) measured at least once in their lifetime. Canadian Cardiovascular Society guidance similarly recommends once-in-a-lifetime measurement as part of initial lipid screening.
5. What Lp(a) level is considered high?
The 2026 ACC/AHA guideline identifies 125 nmol/L or 50 mg/dL and above as a risk-enhancing level. Interpretation should take into account the laboratory units and the patient’s overall cardiovascular risk.
6. Can exercise lower Lp(a)?
Exercise is excellent for cardiovascular health, but it generally does not substantially lower the Lp(a) number itself. It can, however, improve many other cardiovascular risk factors.
7. Can a healthy diet lower Lp(a)?
Diet generally has little effect on genetically determined Lp(a). Nevertheless, a heart-healthy diet remains an important part of reducing overall cardiovascular risk.
8. If my LDL cholesterol is normal, can my Lp(a) still be high?
Yes. Lp(a) is a separate cardiovascular risk factor and is not included in the usual LDL measurement.
9. Is high Lp(a) inherited?
Yes. Lp(a) levels are strongly influenced by genetics. If you have elevated Lp(a), your physician may discuss whether close family members should also be tested.
10. Can high Lp(a) cause a heart attack?
Elevated Lp(a) is associated with increased long-term cardiovascular risk, including heart attack and stroke. It is one risk factor among several, so your complete cardiovascular profile should be considered.
11. Do I need to see a cardiologist if my Lp(a) is high?
A cardiology or lipidology consultation can be helpful when Lp(a) is elevated, particularly if you also have high LDL cholesterol, a family history of premature heart disease, previous cardiovascular disease, or other risk factors.
12. Where can I see a cardiologist for Lp(a) and lipid management?
Dr. Sunny Malhotra provides cardiology and lipidology services for patients in Brampton, Mississauga, Milton, and surrounding communities. You can learn more about the practice and available services through the official website.
Medical Disclaimer: This article is for general educational purposes and is not a substitute for individualized medical advice, diagnosis, or treatment. If you are experiencing severe or sudden chest pain, significant difficulty breathing, fainting, or other potentially serious symptoms, seek urgent medical attention.
