Since liver puncture is the gold standard for diagnosis, why not perform puncture directly and do so many other tests?

Because liver puncture is an invasive examination after all, there is no B-ultrasound or CT, which is simple and safe. Therefore, liver puncture is only considered for those diseases that cannot be diagnosed by non-invasive examination. Unexplained jaundice is an indication for liver puncture. Of course, there are other indications, such as normal liver function test, but obvious symptoms and signs, chronic The grading of hepatitis, etc., I will not list them one by one here.

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