LDL Cholesterol
LDL (low-density lipoprotein) cholesterol is often called 'bad' cholesterol because it carries cholesterol to your arteries, where it can build up in the vessel walls.
Category: lipids
Also known as: ldl, ldl cholesterol, ldl-c, low density lipoprotein, ldl holesterol
Reference range: 0–100 mg/dL (Source: ABIM)
Standard unit: mg/dL
High values may indicate
High LDL cholesterol may indicate increased risk of coronary artery disease, heart attack, stroke, and peripheral artery disease.
Low values may indicate
Low LDL cholesterol is generally considered beneficial, though very low levels may be associated with certain cancers, hemorrhagic stroke, or hormonal deficiencies in rare cases.
Frequently asked questions
- What is a normal LDL Cholesterol level?
- A typical reference range for LDL Cholesterol is 0–100 mg/dL (source: ABIM). Reference ranges vary by laboratory, age, and sex, so always compare against the range on your own lab report.
- What units is LDL Cholesterol measured in?
- LDL Cholesterol is most commonly reported in mg/dL. Labs in different countries may use other units — you can convert between them with BloodId's blood test unit converter.
- Where do LDL Cholesterol reference ranges come from?
- BloodId uses ABIM standard reference ranges and educational information from MedlinePlus (see our methodology). Reference ranges still vary by lab, age, and sex, so always compare against your own report.
- Can I track LDL Cholesterol over time?
- Yes. Upload results from any lab and BloodId charts your LDL Cholesterol over time against its reference range, so you can see whether the trend is rising, falling, or stable.
Related biomarkers
Source: MedlinePlus, U.S. National Library of Medicine
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