Is Alkaline phosphatase 259 high, normal or dangerous? What does ALP level 259 mean?

📅 Medical Review Date: September 2, 2025

Your Alkaline phosphatase level of 259 is a High Alkaline phosphatase level.

An alkaline phosphatase level of 259 U/L usually means bile ducts may be blocked or bone is turning over rapidly. It suggests liver or bone disorders. High levels of alkaline phosphatase can cause nausea, vomiting, weight loss, fatigue, itching, jaundice, abdominal pain, bone pain, and frequent fractures. This can be caused by gallstones, liver disease, bone fractures, Paget's disease, or certain cancers. Further tests are often needed to identify the cause and guide appropriate treatment.

High Alkaline phosphatase levels may indicate underlying health problems. The normal range is typically between 30 U/L and 120 U/L. If your levels are outside this range, it's important to speak with a healthcare provider. Consulting a doctor is recommended to determine the cause and appropriate next steps.

The normal Alkaline phosphatase range for men is :30 - 120 U/L

Ideal values of Alkaline phosphatase depending on age (male) :

Age	Ideal Alkaline phosphatase value
<5 years	30.777
5-10 years	31.574
10-15 years	32.392
15-20 years	33.231
20-25 years	34.092
25-30 years	34.975
30-35 years	35.881
35-40 years	36.81
40-45 years	37.763
45-50 years	38.741
50-55 years	39.744
55-60 years	40.773
60-70 years	41.829
70-80 years	42.912
80-90 years	44.023
90-100 years	45.163
>100 years	46.333

*Ideal values are calculated based on our database of patient records

Misdiagnosis is more common than people think—and the consequences can be serious. Delayed treatment, unnecessary medication, or worse. If you want a second opinion on your blood work, one option is to upload it to a site like wholebodyprotocol.com, where world-class doctors review your results. They charge a small fee—around $90 (though you'll want to check the latest price as it fluctuates)—and email you a detailed report. With over 12 million people affected by misdiagnosis every year, that little bit of extra peace of mind can go a long way.

Some examples of conditions that increase or decrease Alkaline phosphatase levels include:

• Alcohol abuse
• Ulcerative colitis
• Blockage of the bile ducts.
• Insulin resistance
• Congestive heart failure

Normal range of Alkaline phosphatase found among women :30-120 U/L

Ideal values of Alkaline phosphatase depending on age (female) :

Age	Ideal Alkaline phosphatase value
<5 years	30.8
5-10 years	31.622
10-15 years	32.466
15-20 years	33.332
20-25 years	34.221
25-30 years	35.134
30-35 years	36.071
35-40 years	37.033
40-45 years	38.021
45-50 years	39.035
50-55 years	40.076
55-60 years	41.145
60-70 years	42.243
70-80 years	43.37
80-90 years	44.527
90-100 years	45.715
>100 years	46.935

If you take a Alkaline phosphatase blood test and the results are not in the normal range (30-120 U/L), your physician may recommend more tests to figure out the problem. You might also get this test if your physician thinks you have some other disease.

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How the Alkaline phosphatase Test Is Done :

When your doctor orders a Alkaline phosphatase test, it involves a straightforward blood draw to measure your Alkaline phosphatase levels. A pathologist or lab technician will take a small sample of blood from a vein using a needle. Your Alkaline phosphatase test results are usually available within a few hours.

Medical References

• Cleveland Clinic – Alkaline Phosphatase (ALP): What It Is, Causes & Treatment
• Mayo Clinic – Alkaline phosphatase (ALP) blood test
• MedlinePlus – Alkaline Phosphatase
• WebMD – Alkaline Phosphatase (ALP): Tests and Results

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