What it is
Familial hypercholesterolemia, often shortened to FH, is an inherited condition that affects how the body clears LDL cholesterol, sometimes called "bad" cholesterol, from the blood. Because it is present from birth, cholesterol levels may be higher than expected for a very long time.
Many people with FH feel completely well. The condition is often described as "silent" because high cholesterol itself usually does not cause sensations. Some people may notice physical signs, such as fatty deposits on or around tendons, the skin, or the eyelids, or a pale ring around the edge of the cornea at a younger age than usual. These signs do not appear in everyone, and having one does not by itself confirm FH.
Other clues are often found in the story rather than the body: close relatives with very high cholesterol, or relatives who had heart attacks or other heart problems at younger ages. Chest discomfort or shortness of breath can occur if arteries have become narrowed, but these are general heart warning signs, not specific to FH, and they need prompt professional attention.
How it’s traditionally been approached
Traditionally, FH has been recognized through a combination of a lipid panel (a standard blood test measuring cholesterol), a personal and family health history, and a physical exam. Clinicians may look for the physical signs mentioned above and consider how a person's results compare with what is typical.
Genetic heart testing is another tool that may be considered. It can look for inherited variants linked to FH. Genetic tests show risk or carrier status; they do not diagnose heart disease on their own, and results are interpreted alongside history, exam, imaging and bloodwork. A negative result does not rule out risk, and a variant of uncertain significance is not a diagnosis.
Approaches to managing cholesterol have commonly included lifestyle conversations and medicines, and some people are also evaluated for the health of their arteries through imaging. Which options are appropriate, if any, is decided by a licensed clinician after an evaluation. Medicines and procedures are regulated by the FDA, and it is reasonable to ask a provider about the regulatory status of anything being discussed.
How the right cardiologist may help
The right provider, such as a cardiologist with experience in lipid disorders and lipid genetics, may help you make sense of cholesterol results, physical findings and family history together. A first visit commonly involves questions about your health, your relatives' heart history, and any symptoms you have noticed, followed by an exam and possibly bloodwork or imaging.
You might ask: What do my results suggest about inherited risk? Would genetic counseling or genetic heart testing make sense for me? How might the results be interpreted, and what could a negative result or an uncertain variant mean? A genetic counselor can help before and after testing, and licensing for counselors varies by state.
If a disease-causing variant is found, a provider may discuss cascade testing, which means offering testing to biological relatives who may share it. Also ask about insurance: GINA protects against genetic discrimination in US health insurance and employment, but it does not cover life, disability or long-term-care insurance, so ask about those before testing. Coverage for testing and care varies by insurer, state and diagnosis, so confirm with your insurer and provider.
The whole-person view
Body, mind and stress influence one another. Learning that a condition runs in the family can bring worry, guilt about passing it on, or concern for relatives, and stress can in turn affect sleep, energy and daily habits. Acknowledging those feelings is part of caring for the whole person.
Some people find body-based support helpful, such as the approaches offered through Somatic Experiences, while others value talk therapy through Therapists.plus. These can sit alongside medical care rather than replace it, and no single path is right for everyone.
Somatic Experiences: nervous system regulation →Somatic Experiences: embodiment and movement →Therapists.plus: anxiety panic and ocd →Therapists.plus: mind body connection →
Keep in mind
- Many people with familial hypercholesterolemia have no noticeable symptoms, so the absence of symptoms does not rule it out, and the presence of a sign does not confirm it.
- Genetic heart testing is educational context only; it shows risk or carrier status, does not diagnose on its own, and no test or procedure can promise to prevent a heart attack or sudden cardiac death.
- Licensed professionals should guide all diagnosis and care decisions. For an emergency such as chest pain, fainting or trouble breathing, call 911; in an emotional crisis, call or text 988.
- Ask about life, disability and long-term-care insurance before genetic testing, since GINA does not cover them, and confirm coverage with your insurer and provider.
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Frequently asked questions
What are the symptoms of familial hypercholesterolemia?
Many people with familial hypercholesterolemia have no symptoms at all. Some notice fatty deposits on tendons or skin, yellowish patches around the eyelids, or a pale ring around the cornea. If arteries are affected, chest discomfort or shortness of breath may occur, and those need prompt medical attention.
Can you have familial hypercholesterolemia without symptoms?
Yes. FH is often called a silent condition because high cholesterol usually doesn't cause sensations. It is commonly noticed through a blood test or a family history of high cholesterol or early heart problems.
What are the physical signs of familial hypercholesterolemia?
Possible signs include xanthomas (fatty deposits) on tendons or skin, xanthelasma around the eyelids, and a corneal arcus, a pale ring at the edge of the cornea. They don't appear in everyone and aren't proof of FH on their own. A clinician can evaluate what they may mean.
How is familial hypercholesterolemia found if there are no symptoms?
It is generally recognized through a lipid panel, personal and family history, and a physical exam. Genetic heart testing may also be considered. A qualified cardiologist or genetic counselor can interpret results together with your whole health picture.
Does genetic heart testing diagnose familial hypercholesterolemia?
Not on its own. Genetic testing shows risk or carrier status and must be read alongside history, exam, imaging and bloodwork. A negative result doesn't rule out risk, and a variant of uncertain significance is not a diagnosis.
Should my family be tested if I have familial hypercholesterolemia?
If a disease-causing variant is found, providers often discuss cascade testing, which offers testing to biological relatives who may share it. A genetic counselor can help explain options. Also ask about life, disability and long-term-care insurance first, since GINA doesn't cover them.
Educational resource. CardioGenes shares general information and connects people with independent cardiologists. It is not medical advice, diagnosis or treatment. Talk with a licensed professional about your health.