A cholesterol result on its own doesn’t tell you whether you need treatment. The decision depends on your overall risk of heart attack and stroke.
Cholesterol travels in your blood in particles called lipoproteins. Some carry it to your artery walls, where it can build up as plaque; others help carry it away. A lipid panel measures these, and the results feed into a bigger picture of your heart health.
What the panel measures
| Result | What it means |
|---|---|
| LDL cholesterol | The main type that builds up in artery walls; lower is generally better |
| HDL cholesterol | Helps remove cholesterol from the bloodstream |
| Triglycerides | A type of fat in the blood; high levels raise heart risk and can affect the pancreas when very high |
| Total cholesterol | The overall amount, including LDL and HDL |
How often to test
The CDC suggests most healthy adults have their cholesterol checked every four to six years. People with heart disease, diabetes, a family history of high cholesterol or other risk factors usually need more frequent testing.
From numbers to a decision
Clinicians estimate your chance of a heart attack or stroke over the next 10 years, using factors such as age, sex, blood pressure, cholesterol, diabetes and smoking. The U.S. Preventive Services Task Force uses that estimate in its 2022 statin recommendation:
- Ages 40 to 75, at least one risk factor and a 10-year risk of 10% or more: a statin is recommended.
- The same ages and risk factors, with a risk of 7.5% to under 10%: a statin may help; it’s an individual decision.
- Over 75: the Task Force found too little evidence to recommend for or against starting a statin.
Separately, cardiology guidelines generally recommend treatment for adults with LDL of 190 mg/dL or higher, which can signal an inherited condition.
Helpful tip
Ask your clinician which risk calculator they used and what your estimated 10-year risk is. That number explains the recommendation better than any single cholesterol value.
Questions to ask
- What is my estimated 10-year risk, and what drives it?
- How much would a statin lower that risk for me?
- What side effects should I watch for?
- What lifestyle changes would make the biggest difference?
Cholesterol is one part of heart risk; blood pressure and diabetes are two others worth checking.
Key points
- A standard lipid panel reports total cholesterol, LDL, HDL and triglycerides; many tests no longer require fasting.
- The CDC says most healthy adults should have their cholesterol checked every four to six years, and more often with risk factors.
- The Task Force recommends a statin for adults 40 to 75 with at least one heart disease risk factor and an estimated 10-year risk of 10% or higher.
- Very high LDL, 190 mg/dL or more, is usually treated whatever the calculated risk.
Common questions
Do I need to fast before the test?
Often not. Many clinicians order non-fasting tests. If your triglycerides come back high, you may be asked to repeat the test after fasting.
What is a good LDL number?
It depends on your overall risk. Your clinician interprets LDL alongside your age, blood pressure, diabetes, smoking and family history.
Can lifestyle changes replace a statin?
For some people at modest risk, changes to diet, activity and weight may be enough. For others, a statin adds meaningful protection. It’s a decision to make with your clinician.
This guide explains general U.S. screening recommendations and is not medical advice. Your clinician may recommend a different schedule based on your health, history and test results.