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LFT Normal Range, Level, Value in Male & Female

LFT Normal Range, Level, Value in Male & Female

Updated on: Aug 27, 2026 | 5 min read

What is included in this blog

    Summary

    The Liver Function Test (LFT) normal range helps assess liver health by measuring enzymes, bilirubin, and proteins in the blood. Common adult reference values include ALT (SGPT) of approximately 7–56 U/L in males and 7–45 U/L in females, AST (SGOT) of 10–40 U/L in males and 10–35 U/L in females, and total bilirubin of 0.1–1.2 mg/dL. Reference ranges may vary between laboratories. Consult a healthcare professional to interpret abnormal LFT results and identify possible causes.

    The LFT normal range in male and female varies depending on the liver enzyme or protein measured, age, and laboratory reference values. A Liver Function Test (LFT) checks markers such as ALT, AST, ALP, bilirubin, and albumin to assess liver health. Although many reference ranges are similar for both sexes, some values, particularly ALT and AST, may differ.

    What Is the LFT Normal Range?

    A Liver Function Test (LFT) is a blood test that measures enzymes, proteins, and bilirubin associated with liver health. The results help doctors assess possible liver injury, inflammation, and problems with bile flow or liver protein production.

    LFT Normal Range Chart for Male and Female

    The following are commonly used reference ranges for adults. Actual ranges may vary by laboratory and testing method.

    LFT Test Normal Range in Male Normal Range in Female
    ALT (SGPT) Approximately 7–56 U/L Approximately 7–45 U/L
    AST (SGOT) Approximately 10–40 U/L Approximately 10–35 U/L
    ALP (Alkaline Phosphatase) 40–129 U/L 40–129 U/L
    Total bilirubin 0.1–1.2 mg/dL 0.1–1.2 mg/dL
    Direct bilirubin 0–0.3 mg/dL 0–0.3 mg/dL
    Total protein 6.0–8.3 g/dL 6.0–8.3 g/dL
    Albumin 3.5–5.0 g/dL 3.5–5.0 g/dL

    Note: These are illustrative adult reference ranges, not universal cut-offs. Use the ranges provided on your laboratory report. ALP can also vary with age, pregnancy, and bone health.

    What Is the Normal LFT Level in Male and Female?

    The normal LFT level is determined by reviewing all test components together rather than relying on a single result.

    • ALT (SGPT): An enzyme found mainly in the liver. Elevated levels may indicate liver cell injury.

    • AST (SGOT): An enzyme present in the liver and other tissues, including muscles. High levels are not always caused by liver disease.

    • ALP: An enzyme associated with the liver, bile ducts, and bones. Elevated levels may indicate bile flow problems or bone-related conditions.

    • Bilirubin: A yellow pigment produced when red blood cells break down. High levels may cause jaundice.

    • Albumin and total protein: These help assess protein levels in the blood. Low albumin can occur in advanced liver disease and several other conditions.

    What Does a High or Low LFT Value Mean?

    High LFT Values

    High liver enzyme or bilirubin levels may be associated with:

    • Fatty liver disease

    • Viral hepatitis or other liver inflammation

    • Alcohol-related liver injury

    • Certain medicines or supplements

    • Bile duct problems

    The cause depends on which markers are elevated and how high they are.

    Low LFT Values

    Low albumin or total protein may be associated with poor nutrition, kidney-related protein loss, inflammation, or certain liver conditions. Low liver enzyme levels are generally less concerning and often have no clinical significance.

    When Should You Get an LFT Blood Test?

    A doctor may recommend an LFT if you experience persistent fatigue, yellowing of the skin or eyes, dark urine, abdominal discomfort, or unexplained itching. Testing may also be recommended for people with risk factors for liver disease or those taking medicines that require liver monitoring.

    Frequently Asked Questions About LFT Normal Range

    1. What is the normal LFT range in males?

    Common adult reference values include ALT of approximately 7–56 U/L, AST of 10–40 U/L, and total bilirubin of 0.1–1.2 mg/dL. The exact range depends on the laboratory.

    2. What is the normal LFT range in females?

    Common adult reference values include ALT of approximately 7–45 U/L, AST of 10–35 U/L, and total bilirubin of 0.1–1.2 mg/dL. Laboratory-specific reference intervals should be followed.

    3. What is the normal SGPT level in male and female?

    SGPT, also called ALT, is commonly within approximately 7–56 U/L in males and 7–45 U/L in females. Some laboratories use different reference limits.

    4. What is the normal SGOT level in male and female?

    SGOT, also called AST, is commonly within approximately 10–40 U/L in males and 10–35 U/L in females. Muscle injury and other conditions can also affect AST levels.

    5. What is the normal bilirubin level?

    Total bilirubin is commonly around 0.1–1.2 mg/dL in adults. Elevated bilirubin can occur due to liver disease, bile duct obstruction, or increased red blood cell breakdown.

    6. What does a high LFT report mean?

    High LFT values may indicate liver inflammation, fatty liver disease, medication effects, or bile duct problems. Further assessment may be needed to identify the cause.

    7. Is fasting required for an LFT blood test?

    Fasting is not always necessary for an LFT alone. However, follow your laboratory's instructions if other tests are being performed at the same time.

    8. How often should an LFT be done?

    Testing frequency depends on your health, symptoms, medical history, medicines, and previous results. Your doctor can recommend an appropriate testing schedule.

    Conclusion

    The LFT normal range in male and female helps assess liver health through ALT, AST, ALP, bilirubin, albumin, and total protein levels. Reference values can vary between laboratories, so results should be interpreted alongside symptoms, medical history, and other findings. Consult a healthcare professional if your LFT results are outside the reported reference range.

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