What actually changed?

Your cholesterol came back higher. You have been eating much the same way. Your periods are changing. Now you are hearing that the cholesterol guidelines changed, too.

What does that mean for you?

On March 13, 2026, the American Heart Association, American College of Cardiology, and other medical groups updated their advice on cholesterol care. It replaces the 2018 guidance.

The update recommends an extra blood test at least once in adulthood, gives clearer cholesterol goals, and helps care teams decide when other tests could be useful.

For women, the conversation should also include what happened during pregnancy, when menopause began, and whether heart disease runs in the family.

Why does an old pregnancy complication matter?

Because some pregnancy complications are linked with a greater chance of heart disease years later—even after the pregnancy is over.

Tell your care team if you had high blood pressure during pregnancy, including preeclampsia. Also mention diabetes during pregnancy, a baby born early, or menopause before age 45.

These do not automatically mean disease. But they belong in the same story.

This history mattered before 2026. The 2018 guidance already included preeclampsia and menopause before age 40. The update includes a wider range of pregnancy and menopause information.

You can simply say: “I had a complication during pregnancy. Does that change how we should look at my cholesterol now?”

What is the extra blood test?

It is called lipoprotein(a), usually written as Lp(a). It measures a type of particle in your blood that carries cholesterol. How much you have is mostly inherited from your family.

The new guidance recommends that every adult have it checked at least once. It is not part of the usual cholesterol blood test, so you may never have been tested.

A high result can mean a greater chance of heart disease. Food and exercise usually do little to change the Lp(a) number itself. But knowing it can help your care team decide how closely to manage your cholesterol, blood pressure, and other parts of your heart health.

Ask: “Have I ever had my Lp(a) checked?”

And what is ApoB?

ApoB is another blood test. It helps estimate how many cholesterol-carrying particles in your blood could add to fatty buildup in artery walls. That buildup is called plaque.

It can add useful information for some people, including those with type 2 diabetes or high triglycerides—another type of fat measured in blood tests.

ApoB and Lp(a) answer different questions. Neither test shows whether you already have plaque.

Ask: “Would an ApoB result tell us something useful that my usual cholesterol test does not?”

What should my cholesterol number be?

There is no single answer for everyone. LDL is the cholesterol often called “bad” cholesterol. Your LDL goal depends on your health history and your chance of a future heart attack or stroke.

The guidance gives specific goals and also considers how far your LDL has fallen from where it started. Your care team should explain which goal applies to you and why. These are examples; other health conditions or test results can change the advice.

  • Below 100 mg/dL: for people without known artery disease whose chance of a heart attack or stroke falls in the guideline’s “borderline” or middle risk range.
  • Below 70 mg/dL: for people without known artery disease whose chance of a heart attack or stroke is high.
  • Below 55 mg/dL: for people who already have disease caused by plaque and a very high chance of more problems from it.

Do I need a heart scan?

Not everyone does. A heart calcium scan looks for calcium in plaque in the arteries that supply your heart. It can help when you and your care team are unsure whether you should start cholesterol medicine.

For women, the guidance supports considering it from age 45 in certain situations, especially when the chance of a future heart attack or stroke falls in the borderline or middle range. Being 45 does not mean you automatically need a scan.

Ask: “Would this scan change what you recommend for me?”

Why do my old results matter?

How long your cholesterol has been high matters, too. Bring older results if you have them, so your care team can see what has changed over the years.

A lab result is a photograph. A decade of results is a movie.

Your care team may use a calculator called PREVENT to estimate your chance of a heart attack or stroke over the next ten years and, for some adults, thirty years. It helps guide care. It cannot tell you exactly what will happen to you.

What do I do now?

Bring your cholesterol results, pregnancy history, family history, and list of medicines to your next visit. Mention when menopause began, if it has. Start with one question: “Looking at all of this together, what should we do next?”

Food, movement, sleep, and avoiding tobacco still matter. Some people also need cholesterol medicine. Statins are one common type. Other medicines can be added or used when needed.

Tell your prescriber if you are pregnant, planning pregnancy, or breastfeeding, because this can change which medicines are suitable. Do not start, stop, or change a medicine based on this article.

Your Heart Story can help you put the pieces in one place before that conversation. You do not need perfect records to begin.

Build the heart you need now.

Related heart questions

Evidence behind the article

Sources and editorial review

Sources last checked:

  1. ACC/AHA Issue Updated Guideline for Managing Lipids, CholesterolAmerican College of Cardiology · March 13, 2026
  2. ACC, AHA Release New Clinical Guideline For Managing DyslipidemiaAmerican College of Cardiology · 2026
  3. Lower Sooner: How the 2026 Dyslipidemia Guideline Changes PracticeAmerican College of Cardiology · 2026
  4. Key Patient Messages: 2026 Guideline on the Management of DyslipidemiaAmerican Heart Association · 2026
  5. 2018 Cholesterol Guideline: Primary and Secondary Prevention OverviewAmerican College of Cardiology · 2018
  6. An Update on Lipoprotein(a): Testing and Risk BackgroundAmerican College of Cardiology · 2023
  7. Plain Language Summary of the 2026 Dyslipidemia GuidelineAmerican Heart Association · 2026

Independent clinical review is identified only when it has been completed and approved in writing. No external reviewer or organization is implied. Sources do not imply endorsement of HEART RESERVE.