Homocysteine normal range — check your value

Roughly 5 to 15 micromol/L.

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Your Homocysteine test value

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Homocysteine

µmol/L

What Homocysteine measures

An amino acid that accumulates when B vitamins are deficient, associated with higher clot and heart risk.

Homocysteine normal range chart

ResultHomocysteine (µmol/L)

Below rangeBelow 5.46

In range5.46 – 16.2

Above range16.2 and above

These bands are for female, 31–45 years. Enter your age and gender above to see the bands for you. The table below shows the range for every age and gender.

Homocysteine normal range by age and gender

AgeMaleFemale

0–1 years4 – 10 µmol/L4 – 10 µmol/L

2–6 years4 – 10 µmol/L4 – 10 µmol/L

7–11 years4 – 10 µmol/L4 – 10 µmol/L

12–17 years4 – 11 µmol/L4 – 11 µmol/L

18–30 years5.46 – 16.2 µmol/L4 – 12 µmol/L

31–45 years5.46 – 16.2 µmol/L5.46 – 16.2 µmol/L

46–60 years5.46 – 16.2 µmol/L5 – 14 µmol/L

What a high Homocysteine means, and common causes

An amino acid linked to higher risk of clots and heart disease when raised. It is most often a marker of B vitamin deficiency.

Common causes: Vitamin B12, folate or B6 deficiency, which is very common in vegetarian diets, chronic kidney disease, hypothyroidism, smoking, and an inherited MTHFR variant.

What a low Homocysteine means, and common causes

A low homocysteine is favourable and needs no action.

Common causes: Not applicable.

Frequently asked questions

Roughly 5 to 15 micromol/L.

Correcting B12 and folate deficiency usually brings it down. Whether that reduces heart events is still debated, so it is treated as one risk marker among several.

Aksar B12 ya folate ki kami. Shakahari logon mein yeh aam hai, aur kami theek karne par level gir jaata hai.

Please note. This page explains what a number means against reference ranges for your age and gender. It does not diagnose anything, cannot see the rest of your report, and is no substitute for a doctor. If your lab’s printed range differs, your lab’s range applies.