Heart & Metabolic Health

Cholesterol

Cholesterol is a waxy, fat-like substance the body uses to make cells, hormones, and other essential substances.

Also known as: LDL, HDL

Updated November 13, 2026 · Patient education

Understanding Cholesterol

The liver makes cholesterol, and some also comes from food. It travels in the blood in particles called lipoproteins. LDL cholesterol can contribute to plaque buildup in arteries; HDL helps carry cholesterol back toward the liver.

How it is assessed or used in care

A lipid panel measures cholesterol-related values and triglycerides. Clinicians interpret these results alongside age, blood pressure, smoking, diabetes, and family history to assess cardiovascular risk. A result is not interpreted in isolation.

What to discuss with your clinician

Ask which part of your cholesterol result needs attention and whether lifestyle changes, medication, or follow-up testing are appropriate. High cholesterol usually does not cause symptoms, so feeling well does not tell you what your level is.

Medical references

  1. Cholesterol | High Cholesterol | MedlinePlus
  2. Cholesterol Levels: MedlinePlus Medical Test

Sources accessed November 13, 2026.

This information is for general education, not a diagnosis or an individualized treatment plan. Discuss symptoms, test results, and treatment decisions with a qualified clinician. For a medical emergency, call 911.