High Cholesterol & Heart Specialist

What Is High Cholesterol?

Cholesterol is a fatty substance your body needs to build cells, produce hormones, and perform other essential functions. Your liver makes cholesterol, and your body also absorbs some from food.

High cholesterol, also called hypercholesterolemia, occurs when cholesterol levels in your blood are elevated. The type of cholesterol and the number of cholesterol-carrying particles are important when assessing cardiovascular risk, particularly low-density lipoprotein cholesterol (LDL).

Over time, LDL cholesterol can contribute to plaque buildup inside the arteries. This process, known as atherosclerosis, can narrow blood vessels and restrict blood flow. If plaque buildup or a blood clot blocks blood flow, it can lead to serious complications, including:

• Coronary artery disease

• Heart attack

• Stroke

• Peripheral artery disease

High cholesterol usually causes no noticeable symptoms. A person can feel well and remain physically active while having cholesterol levels that increase their cardiovascular risk. Blood testing and an assessment of other risk factors help identify concerns before a cardiovascular event occurs.

What Do LDL, HDL, and Triglycerides Mean?

A lipid panel is a blood test that measures cholesterol and other fats circulating in your blood. Each measurement provides different information about your cardiovascular health.

LDL Cholesterol

Low-density lipoprotein cholesterol, or LDL cholesterol, is often called “bad” cholesterol because elevated levels contribute to plaque buildup in the arteries. LDL is a major focus of cholesterol treatment because lowering it can reduce the risk of cardiovascular events.

HDL Cholesterol

High-density lipoprotein cholesterol, or HDL cholesterol, is commonly called “good” cholesterol because HDL particles help transport cholesterol to the liver for processing. However, a high HDL level does not automatically eliminate cardiovascular risk. HDL must be interpreted alongside LDL, triglycerides, and other risk factors.

Triglycerides

Triglycerides are a type of fat the body uses for energy storage. Elevated triglycerides can accompany insulin resistance, diabetes, excess weight, and other metabolic concerns. When triglycerides are very high, they can also increase the risk of pancreatitis.

Total Cholesterol

Total cholesterol reflects the cholesterol carried by different lipoproteins in the blood. Although useful for screening, total cholesterol alone does not provide a complete picture of cardiovascular risk.

Non-HDL cholesterol is another useful measurement. It is calculated by subtracting HDL cholesterol from total cholesterol and represents cholesterol carried by potentially atherogenic lipoproteins.

What Should My Cholesterol Levels Be?

There is no single cholesterol target that is appropriate for everyone. The levels recommended for you depend on your cardiovascular history, current risk factors, and likelihood of developing heart disease or experiencing a stroke.

Your assessment may consider:

• Age and family history of premature cardiovascular disease

• Blood pressure and whether you have hypertension

• Diabetes, kidney disease, or other metabolic conditions

• Tobacco use

• Previous heart attack, stroke, or other cardiovascular disease

• Evidence of plaque in the arteries

• LDL cholesterol, non-HDL cholesterol, and other relevant lipid measurements

For some people, lifestyle changes and periodic monitoring may be appropriate. Others may benefit from earlier or more intensive treatment, even if they have no symptoms.

Current cardiovascular guidelines use an individualized approach to risk assessment and treatment goals. Your clinician may consider your estimated short-term and longer-term risk, additional risk factors, and test results when determining an appropriate LDL cholesterol goal.

At Vivify Medical, we interpret cholesterol results alongside your medical history, lifestyle, and overall cardiovascular health rather than relying on a single number.

What Causes High Cholesterol?

High cholesterol can develop for several reasons. Genetics, diet, physical activity, medical conditions, and certain medications may all influence your cholesterol levels.

Genetics and Family History

Some people inherit a tendency to produce or retain higher levels of LDL cholesterol. Familial hypercholesterolemia (FH) is an inherited condition that can cause substantially elevated LDL cholesterol from an early age. It is associated with increased lifetime cardiovascular risk and may require earlier treatment.

A family history of high cholesterol or heart disease at a young age is an important reason to discuss your cholesterol levels with a clinician.

Lifestyle Factors

Dietary patterns high in saturated fat can raise LDL cholesterol in many people. Physical inactivity, excess weight, tobacco use, and high intake of refined carbohydrates or added sugars can also contribute to an unfavorable lipid profile, particularly when triglycerides are elevated.

Lifestyle factors are important, but they do not explain every case of high cholesterol. Someone who eats well, exercises regularly, and maintains a healthy weight may still have elevated LDL cholesterol because of inherited or other medical factors.

Medical Conditions and Medications

Certain health conditions can affect cholesterol and triglyceride levels. These include diabetes, hypothyroidism, kidney disease, and some liver conditions. Some prescription medications can also influence lipid levels.

Identifying the underlying contributors helps guide an appropriate treatment plan.

What Are the Risks of High Cholesterol?

The main concern with elevated LDL cholesterol is its contribution to atherosclerosis. Over time, cholesterol-containing particles can accumulate in artery walls and contribute to plaque formation.

As plaque develops, arteries may become narrower and less able to deliver blood to the heart, brain, and other parts of the body. Plaque can also rupture and trigger a blood clot, potentially causing a heart attack or stroke.

Risk depends on more than cholesterol alone. Blood pressure, diabetes, smoking, age, family history, and existing cardiovascular disease can all influence the likelihood of complications.

Long-term exposure to elevated LDL cholesterol is particularly important. Identifying high cholesterol early can create an opportunity to address cardiovascular risk before serious complications develop.

Does High Cholesterol Cause Symptoms?

High cholesterol usually has no symptoms.

Most people cannot tell whether their cholesterol is elevated based on how they feel. Symptoms generally occur only if a related condition develops, such as coronary artery disease or a cardiovascular event.

In some people with inherited cholesterol disorders, physical findings such as cholesterol deposits in tendons or around the eyes may occur. However, these findings are not present in most people with high cholesterol.

A lipid panel is the primary way to identify elevated cholesterol. Your clinician can help determine when testing is appropriate based on your age, medical history, family history, and other risk factors.

Chest pain, sudden shortness of breath, facial drooping, weakness on one side of the body, or difficulty speaking may indicate a medical emergency. Call 911 if these symptoms occur.

How Is High Cholesterol Diagnosed?

High cholesterol is evaluated with a blood test called a lipid panel. A standard panel generally measures total cholesterol, LDL cholesterol, HDL cholesterol, and triglycerides. Non-HDL cholesterol can be calculated from the results.

Fasting is not always necessary before a lipid panel. Your clinician can advise whether fasting is appropriate for your particular circumstances.

A complete cholesterol evaluation may also include:

• Personal and family medical history

• Blood pressure measurement

• Assessment of diabetes and other metabolic risk factors

• Review of diet, physical activity, tobacco use, and alcohol intake

• Evaluation for medical conditions that may affect cholesterol

• Review of current medications

The results are interpreted in the context of your overall cardiovascular risk. Two people with the same LDL cholesterol level may have different treatment needs because their medical histories and other risk factors differ.

When Is Additional Cholesterol Testing Helpful?

A standard lipid panel provides important information, but additional testing can help refine cardiovascular risk assessment in selected patients.

Lipoprotein(a), or Lp(a)

Lp(a) is a cholesterol-carrying particle largely influenced by genetics. Elevated Lp(a) can increase cardiovascular risk even when conventional cholesterol results appear reassuring. The 2026 ACC/AHA dyslipidemia guideline recommends measuring Lp(a) at least once in adulthood to help identify inherited cardiovascular risk.

Apolipoprotein B, or ApoB

ApoB is a protein found on several types of potentially artery-damaging lipoprotein particles. Measuring ApoB can provide additional information when the standard lipid panel may not fully reflect the number of atherogenic particles, particularly in certain patients with elevated triglycerides, diabetes, or cardiovascular disease.

Coronary Artery Calcium (CAC) Scoring

A coronary artery calcium scan is a type of CT scan that detects calcified plaque in the coronary arteries. In selected patients, the result can help clarify cardiovascular risk and inform decisions about preventive treatment.

These tests are not necessary for everyone. A cardiologist can determine which assessments are appropriate based on your cholesterol results, medical history, and individual risk profile.

How Is High Cholesterol Treated?

High cholesterol treatment aims to lower harmful cholesterol levels and reduce the risk of heart attack, stroke, and other cardiovascular complications. The appropriate approach depends on your LDL cholesterol, overall cardiovascular risk, medical history, and response to previous treatment.

Lifestyle Changes

Lifestyle measures are an important part of cholesterol management. Depending on your needs, recommendations may include:

• Eating more vegetables, fruits, legumes, whole grains, nuts, and other fiber-rich foods

• Choosing unsaturated fats, fish, and plant-based protein sources more often

• Reducing saturated fat and avoiding trans fats

• Limiting refined carbohydrates and added sugars, particularly when triglycerides are elevated

• Engaging in regular physical activity

• Maintaining a weight that supports your overall health

• Avoiding tobacco

• Getting adequate sleep and managing stress

Lifestyle changes can improve cholesterol levels and support cardiovascular health. However, their effects vary from person to person, and they may not be sufficient on their own when LDL cholesterol is substantially elevated or cardiovascular risk is high.

When Is Cholesterol Medication Needed?

Medication may be recommended when cholesterol levels and overall cardiovascular risk indicate that lifestyle changes alone are unlikely to provide sufficient protection.

Factors that may support medication include:

• Very high LDL cholesterol

• Known coronary artery disease, previous heart attack, or stroke

• Familial hypercholesterolemia

• Diabetes or certain other medical conditions

• Evidence of plaque in the arteries

• An elevated estimated risk of cardiovascular disease

• Cholesterol levels that remain above the recommended treatment goal

Statins are commonly used because they lower LDL cholesterol and reduce the risk of heart attack and stroke. Depending on the patient's needs and response to treatment, other options may include ezetimibe, bempedoic acid, PCSK9 inhibitors, or medication for selected patients with significantly elevated triglycerides.

Medication decisions should account for the expected cardiovascular benefit, possible side effects, other medical conditions, and patient preferences. When medication is recommended, lifestyle measures remain an important part of the overall plan.

When Should You See a Cardiologist for High Cholesterol?

A cardiology evaluation may be helpful if your cholesterol is persistently elevated, you have a strong family history of early heart disease, or you have other cardiovascular risk factors.

You may also benefit from a more detailed assessment if you have very high LDL cholesterol, elevated Lp(a), suspected familial hypercholesterolemia, or cholesterol levels that remain above your treatment goal.

A cardiologist can assess your risk of heart attack and stroke, determine whether additional testing may be useful, and discuss appropriate treatment options. Ongoing monitoring helps evaluate your response to treatment and identify changes in cardiovascular risk over time.

At Vivify Medical, high cholesterol is evaluated as part of your overall cardiovascular health. We consider your test results, medical history, family history, and other risk factors when developing a personalized approach to prevention and treatment.