Hyperlipidemia is a medical condition characterized by elevated levels of fats (lipids) and fat-transporting proteins (lipoproteins) in the bloodstream. Lipids such as cholesterol and triglycerides are essential for normal bodily function, supporting hormone production, cell structure and energy storage. However, when present in excess, these fats can accumulate in the arteries and contribute to atherosclerosis, a buildup of plaque that increases the risk of serious cardiovascular problems, including heart attack, stroke and peripheral artery disease (PAD).
Hyperlipidemia typically develops gradually over several years. Although it can affect individuals of any age, it is most commonly diagnosed in adults, especially those with a family history of heart disease. The condition is widespread in the United States and other developed countries, affecting millions of people worldwide, many of whom have no noticeable symptoms.
What Are the Types of Hyperlipidemia?
Hyperlipidemia is categorized based on its underlying cause and the specific lipids elevated in the bloodstream. The main types are:
Primary Hyperlipidemia
Primary hyperlipidemia is often inherited and tends to run in families, with many individuals receiving a diagnosis at a relatively young age. The condition may be further classified as:
- Familial hypercholesterolemia – Characterized by very high low-density lipoprotein (LDL) cholesterol levels, familial hypercholesterolemia may lead to early cardiovascular disease.
- Familial combined hyperlipidemia – The most common type of inherited lipid disorder, familial combined hyperlipidemia involves elevated levels of cholesterol and/or triglycerides.
- Familial hypertriglyceridemia – Marked by high triglyceride levels, familial hypertriglyceridemia can increase the risk of pancreatitis.
Secondary Hyperlipidemia
In many cases, secondary hyperlipidemia develops as a result of an underlying medical condition, such as chronic kidney disease, hypothyroidism, obesity or type 2 diabetes. In addition, certain lifestyle factors can contribute to elevated lipid levels.
What Are the Causes and Risk Factors for Hyperlipidemia?
Hyperlipidemia occurs when the body either overproduces lipids or is unable to effectively remove them from the bloodstream. The underlying causes are generally categorized as either primary or secondary.
Primary hyperlipidemia is genetic in origin. Certain inherited conditions, such as familial hypercholesterolemia, familial combined hyperlipidemia and familial hypertriglyceridemia, can interfere with the body’s ability to regulate cholesterol and triglyceride levels. These disorders can lead to significantly elevated lipid levels beginning as early as childhood or adolescence. Secondary hyperlipidemia is acquired, typically resulting from another medical condition or from lifestyle factors that contribute to lipid imbalances.
In many cases, hyperlipidemia arises from a combination of genetic predisposition and environmental factors. While certain environmental influences can be modified, others cannot.
Risk factors for hyperlipidemia include:
- Advanced age – The risk of developing hyperlipidemia increases with age. Men are generally at higher risk earlier in life, while women tend to experience an elevated risk after menopause due to hormonal changes.
- Genetics – Individuals with a family history of high cholesterol or early heart disease are at heightened risk of developing hyperlipidemia.
- Obesity – Excess body weight is linked to elevated levels of triglycerides and reduced levels of high-density lipoprotein (HDL) “good” cholesterol, which the body needs to remove low-density lipoprotein (LDL) “bad” cholesterol from the bloodstream.
- Unhealthy lifestyle – Lack of physical activity, excessive alcohol consumption, smoking and a diet high in saturated fats, trans fats and refined carbohydrates can contribute significantly to abnormal lipid levels.
- Use of certain medications – Some drugs can worsen lipid profiles, especially when combined with other risk factors. Examples include thiazide diuretics, non-selective beta-blockers, corticosteroids, oral estrogens/progestins, retinoids (e.g., isotretinoin), protease inhibitors, atypical antipsychotics, cyclosporine/tacrolimus.
Understanding and addressing these risk factors is essential for preventing and managing hyperlipidemia, especially in those with a genetic predisposition.
What Are the Warning Signs and Symptoms of Hyperlipidemia?
Usually, hyperlipidemia does not cause noticeable symptoms in its early stages. Most people remain unaware of their elevated cholesterol or triglyceride levels until the condition is discovered through routine blood testing. For this reason, hyperlipidemia is often referred to as a “hidden” or “silent” condition.
However, if lipid levels become extremely high or remain elevated for an extended period, warning signs may begin to appear. These include:
- Arcus senilis – A gray or whitish-blue ring may form around the cornea of the eye. Caused by an accumulation of lipid deposits in the cornea, this symptom is more common in older adults but may occur earlier in individuals with high cholesterol. Arcus at a younger age can suggest a hereditary disorder, such as familial hypercholesterolemia.
- Chest pain and other heart disease symptoms – Untreated hyperlipidemia may contribute to atherosclerosis, which can lead to chest pain, shortness of breath and heart attack.
- Xanthelasma – Soft, yellowish, raised or flat patches composed of lipids may form under the skin, often around the eyelids and eyes.
- Xanthomas – Raised, yellowish or reddish, fatty deposits may form skin bumps around the elbows, hands, knees or feet.
Because serious complications of hyperlipidemia can occur without early warning signs, regular screening is critical, especially for individuals with known risk factors.
How Is Hyperlipidemia Diagnosed?
Hyperlipidemia is diagnosed through a lipid panel, also known as a lipid profile. This simple blood test measures the levels of various lipids in the bloodstream. A standard lipid panel typically includes:
- High-density lipoprotein cholesterol – Higher HDL levels are favorable, as HDL helps remove excess LDL from the bloodstream.
- Low-density lipoprotein cholesterol – Elevated LDL levels are concerning, as LDL contributes to plaque buildup in the arteries.
- Total cholesterol – While total cholesterol alone is not the sole determinant of heart health, it can serve as a valuable starting point in helping the physician assess the patient’s overall cardiovascular risk.
- Triglycerides – High triglyceride levels can increase the risk of heart disease and pancreatitis.
For the most accurate results, a lipid panel is usually performed after the patient fasts for nine to 12 hours, particularly if triglyceride levels are being evaluated.
However, nonfasting lipid testing is now widely accepted in many clinical settings.
In addition to blood testing, the physician will consider the patient’s medical history, family history, lifestyle factors and other cardiovascular risk factors. Based on these findings, the physician may recommend additional testing or treatment.
Routine lipid screening plays an important role in the early detection of hyperlipidemia and in supporting long-term cardiovascular health.
How Is Hyperlipidemia Treated?
Hyperlipidemia can often be managed effectively through a combination of lifestyle modifications and, when necessary, medication. The primary goal of treatment is to reduce harmful cholesterol and triglyceride levels, thereby lowering the risk of heart disease, stroke and other cardiovascular complications.
For many patients, initial management involves adopting healthier daily habits, such as:
- Achieving and maintaining a healthy body weight – Weight loss can help reduce LDL cholesterol and triglycerides while increasing HDL cholesterol.
- Avoiding tobacco and limiting alcohol – Quitting smoking and moderating alcohol intake can significantly support heart health.
- Improving diet – A heart-healthy eating plan typically emphasizes fruits, vegetables, whole grains, lean proteins and unsaturated fats while limiting saturated fats, trans fats, sodium and added sugars.
- Increasing physical activity – Most adults benefit from at least 150 minutes of moderate-intensity, physician-approved exercise each week, such as brisk walking, cycling or swimming.
These lifestyle changes can meaningfully improve lipid levels, particularly when combined with regular medical monitoring. However, if lifestyle adjustments are not sufficient or if lipid levels are significantly elevated, medication may be recommended. Common options include:
- Statins – The most commonly prescribed medications to lower LDL cholesterol by reducing its production in the liver
- Ezetimibe – A cholesterol absorption inhibitor that may be used alone or with a statin
- Fibrates – Medications primarily used to lower triglyceride levels and raise HDL cholesterol
- High-dose omega-3 fatty acid supplements – For high triglycerides, prescription EPA (icosapent ethyl) reduces cardiovascular events; mixed EPA/DHA products lower triglycerides but may raise LDL and have not shown the same outcome benefits.
- PCSK9 inhibitors – Injectable drugs that can dramatically reduce LDL levels, often prescribed for patients with familial hypercholesterolemia or statin intolerance
- Bile acid sequestrants and niacin – Less commonly used but may be appropriate in select cases
Treatment is tailored to the patient’s individual risk factors, medical history and response to therapy. Ongoing follow-up and lipid monitoring will be essential to evaluate the patient’s progress and make any necessary adjustments to the care plan.
What Are the Possible Complications and Long-Term Effects of Hyperlipidemia?
If left untreated, hyperlipidemia can lead to serious and potentially life-threatening complications. Over time, elevated levels of cholesterol and triglycerides can contribute to atherosclerosis. As plaque builds up inside the arteries, it can restrict blood flow and significantly increase the risk of:
- Carotid artery disease – Narrowing of the arteries that carry blood to the brain can result in a stroke or transient ischemic attack (TIA).
- Coronary artery disease – Plaque accumulation in the arteries that supply the heart can lead to chest pain (angina), heart failure or heart attack.
- Kidney disease – Individuals with a coexisting condition, such as diabetes or hypertension, are at increased risk of kidney damage.
- Liver disease – Elevated triglycerides are associated with nonalcoholic fatty liver disease (NAFLD), which can lead to liver inflammation and scarring over time. NASH is now more commonly known as metabolic dysfunction-associated steatotic liver disease (MASLD).
- Pancreatitis – Extremely high triglyceride levels can cause acute pancreatitis, a painful inflammation of the pancreas that often requires immediate care and hospitalization.
- Peripheral artery disease – Reduced circulation in the limbs, especially the legs, can cause pain, cramping, numbness and, in severe cases, ulcers or tissue damage.
Because hyperlipidemia often develops without noticeable symptoms, regular screening and early management are essential. Controlling lipid levels through lifestyle changes and, when needed, medication can significantly lower the risk of complications and support long-term cardiovascular health.
Can Hyperlipidemia Be Prevented?
In many cases, hyperlipidemia can be prevented or delayed through consistent lifestyle choices and routine health screenings. Because high cholesterol and triglyceride levels often develop gradually and without symptoms, prevention focuses on maintaining heart-healthy habits long before complications arise. These include:
Avoiding Tobacco and Limiting Alcohol
Smoking lowers HDL cholesterol and damages the arteries, increasing cardiovascular risk. Quitting tobacco is one of the most effective ways to support long-term heart health. Additionally, limiting alcohol intake can help reduce triglyceride levels and lessen the strain on the liver.
Healthy Eating
A balanced, nutrient-dense diet is fundamental to preventing hyperlipidemia. Key dietary practices include:
- Cooking with heart-healthy oils, such as canola oil and olive oil
- Eliminating trans fats and reducing the intake of saturated fats
- Minimizing added sugars and refined carbohydrates
- Prioritizing fiber-rich foods, including fruits, vegetables and whole grains
- Selecting lean protein sources, such as fish, legumes and skinless poultry
Lipid Screenings
Routine lipid testing can allow for early detection of abnormal cholesterol and triglyceride levels, often before symptoms occur. Screenings are especially important for individuals with a family history of hyperlipidemia or other risk factors, such as diabetes, high blood pressure or obesity.
Regular Exercise
Routine physical activity can raise HDL cholesterol and lower both LDL cholesterol and triglycerides. Adults should aim for at least 150 minutes of moderate-intensity aerobic exercise each week, such as brisk walking, cycling or swimming, as recommended by a physician.
Weight Management
Achieving and maintaining a healthy body weight can reduce the risk of hyperlipidemia and its complications. Even a modest weight loss can lead to significant improvements in cholesterol, triglyceride levels and overall cardiovascular health.
By adopting preventive measures early and maintaining them consistently over time, an individual can significantly lower their risk of developing hyperlipidemia and related cardiovascular conditions.
Living With Hyperlipidemia
Life with hyperlipidemia often means managing a condition that presents no noticeable symptoms but poses significant long-term health risks. Elevated cholesterol and triglyceride levels typically cause no discomfort, making it easy to overlook the condition. However, once diagnosed, hyperlipidemia requires ongoing attention to lifestyle choices and, in many cases, long-term medical management.
If cholesterol-lowering medications are prescribed, the patient should take them exactly as directed. The physician will monitor the patient’s progress through follow-up appointments and periodic lipid panels, adjusting the treatment plan as needed to achieve and maintain target lipid levels.
Managing hyperlipidemia can be challenging, particularly when recommended changes disrupt long-standing habits or social routines. Adopting new patterns—such as reading nutrition labels, preparing heart-healthy meals and fitting physical activity into a busy schedule—often requires sustained effort. However, gradual adjustments can become more manageable over time and often lead to noticeable improvements in energy, mood and overall well-being.
Living with hyperlipidemia involves staying informed, making intentional daily decisions and working closely with a physician to reduce cardiovascular risks and support long-term health.
Benefit From World-Class Care at TGH
TGH is honored to be recognized as one of the nation’s top hospitals for hyperlipidemia by U.S. News & World Report for 2025-26 and the only hospital in the Tampa Bay region recognized by Becker’s Hospital Review as one of “100 Hospitals and Health Systems with Great Heart Programs.” This distinction reflects our commitment to clinical excellence, innovative care and outstanding patient outcomes.
If you would like to learn more about hyperlipidemia, please call (800) 844-3900 or email heart-vascular@tgh.org to request a consultation with a specialist at our nationally acclaimed Heart and Vascular Institute.