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Prevention & screening

When Should You Get Your Cholesterol Checked?

Most guidelines recommend starting cholesterol screening in your twenties, with follow-up testing every four to six years if results are normal and overall risk is low. Adults with risk factors — family history of early heart disease, high blood pressure, diabetes, obesity, or smoking — typically need more frequent checks.

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Nina Osei, NP — Nurse Practitioner

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Why does cholesterol screening matter if I feel fine?

High LDL cholesterol produces no symptoms. It contributes silently to the buildup of plaque in artery walls (atherosclerosis) over years and decades, narrowing and hardening arteries and raising the risk of heart attack and stroke. A blood test is the only way to know your levels 1.

Catching elevated cholesterol early means you and your clinician can act — through lifestyle changes, medication, or both — before the damage progresses. This is precisely why screening in the absence of symptoms is important.

When should you start getting cholesterol tested?

Major guidelines generally recommend an initial cholesterol screen for adults starting in their twenties. For those with normal results and no significant risk factors, testing every four to six years is typically sufficient 1.

This changes with age and risk: - Adults in their forties and older often have cholesterol checked every one to two years, or as part of a broader cardiovascular risk calculation that incorporates blood pressure, age, sex, smoking status, and diabetes. - Women's LDL often rises after menopause — an important time to recheck if not recently screened. - Children and adolescents with a strong family history of high cholesterol or early heart disease may be screened as young as nine to ten years old.

For people with diabetes, cholesterol monitoring is part of routine annual care, and LDL targets are typically more aggressive 2.

What does the test actually measure?

A lipid panel — the standard cholesterol test — measures four values 1:

  • Total cholesterol: the sum of all cholesterol types in your blood
  • LDL cholesterol: the primary target in cardiovascular risk management — higher levels are associated with increased plaque buildup
  • HDL cholesterol: protective — higher levels are generally better
  • Triglycerides: blood fats that also factor into cardiovascular risk

A clinician interprets these values together with your overall health picture, not in isolation. The goal of the test is not just to produce numbers — it is to understand your absolute risk of a cardiovascular event.

The test is most accurate when fasting for eight to twelve hours beforehand; water is fine.

What happens if your cholesterol is elevated?

If your cholesterol is in a favorable range and overall cardiovascular risk is low, the typical plan is to recheck in a few years and continue a heart-healthy lifestyle.

If LDL or triglycerides are elevated, your clinician will look at contributing causes — diet, genetics (familial hypercholesterolemia is a real inherited condition), or other conditions like diabetes or thyroid disease 3. Lifestyle changes such as reducing saturated fat, increasing soluble fiber, and regular aerobic exercise can meaningfully lower LDL 1. When lifestyle is not sufficient, cholesterol-lowering medications are effective and widely used.

This is a shared decision between you and your clinician, weighing benefits, risks, and your preferences.

What additional tests might follow?

  • Cardiovascular risk score (e.g., ACC/AHA Pooled Cohort Equations): Combines cholesterol with age, sex, blood pressure, smoking, and diabetes to estimate 10-year heart disease risk 1
  • Blood glucose or hemoglobin A1c: Screens for diabetes, which substantially raises cardiovascular risk and changes LDL goals 2
  • Thyroid function (TSH): An underactive thyroid can raise LDL; treating hypothyroidism often brings cholesterol down 3
  • Lipoprotein(a): An inherited cholesterol particle that adds cardiovascular risk independently of LDL; increasingly tested in people with unexplained high risk or a strong family history

Common questions

At what age should I start getting my cholesterol checked?

Most guidelines recommend a first cholesterol check in your twenties. If you have risk factors such as a family history of early heart disease, obesity, or diabetes, your clinician may recommend starting earlier or checking more frequently.

How often should I get my cholesterol tested?

Every four to six years for adults with normal results and low cardiovascular risk. Adults with risk factors, elevated results, or who are on cholesterol-lowering medication need more frequent monitoring — often every one to two years or as directed by their clinician.

Can high cholesterol run in families?

Yes. Familial hypercholesterolemia (FH) is a genetic condition that causes very high LDL, often above 190 mg/dL, that does not respond adequately to diet alone. If a parent or sibling had a heart attack before age 55 (men) or 65 (women), or if your LDL is consistently very high, ask your clinician whether FH evaluation is warranted.

Does diet alone determine my cholesterol?

Diet is one important factor but not the only one. Genetics, physical activity level, body weight, medications, hormonal status, and underlying conditions like hypothyroidism or diabetes all affect cholesterol levels. A clinician can help sort out which factors are most relevant in your case.

Talk to a clinician

Nina Osei, NP — Nurse Practitioner

checkups, refills & skin. Gale can match you with a licensed clinician for a visit.

Find care →

Symptoms that need emergency care — not a cholesterol check

  • —Chest pain, pressure or tightness, pain radiating to the jaw or arm, sudden shortness of breath, or unexplained sweating — call 911
  • —Sudden severe headache, weakness on one side of the body, difficulty speaking, or vision changes — call 911 (possible stroke)

High cholesterol itself causes no symptoms. If you are experiencing any of the above, do not wait — call 911.

This article is general health education and does not constitute medical advice, a diagnosis, or a treatment recommendation. A licensed clinician can interpret your cholesterol results and guide next steps.

References

  1. 1.Grundy SM, Stone NJ, Bailey AL, et al. (2019). 2018 AHA/ACC/AACVPR/AAPA/ABC/ACPM/ADA/AGS/APhA/ASPC/NLA/PCNA Guideline on the Management of Blood Cholesterol. Circulation. doi:10.1161/CIR.0000000000000625 ✓Cholesterol screening recommendations, LDL reference ranges, cardiovascular risk calculator use, and lifestyle modifications
  2. 2.American Diabetes Association Professional Practice Committee (2024). Standards of Care in Diabetes—2024. Diabetes Care. doi:10.2337/dc24-SINT ✓Routine annual cholesterol monitoring in people with diabetes and more aggressive LDL targets
  3. 3.Jonklaas J, Bianco AC, Bauer AJ, et al. (2014). Guidelines for the Treatment of Hypothyroidism: Prepared by the American Thyroid Association Task Force on Thyroid Hormone Replacement. Thyroid. doi:10.1089/thy.2014.0028 ✓Hypothyroidism as a cause of elevated LDL; treating hypothyroidism often reduces cholesterol

3 sources, numbered by first appearance. General health information, not medical advice — synthetic demonstration content.