Is it accurate to draw blood for Helicobacter pylori positive?

Helicobacter pylori generally refers to helicobacter pylori, blood test helicobacter pylori positive is generally not accurate.

If blood test found helicobacter pylori positive, it means that there is helicobacter pylori antibody in the body, and the reason for this antibody is because helicobacter pylori infection, the body will produce an immune response against this pathogen, resulting in specific antibodies. However, this antibody can still exist in the body for more than half a year after eradication of helicobacter pylori. Therefore, Helicobacter pylori positive may indicate that there is an infection now, but also may indicate that there is a past infection, because it is impossible to make an accurate judgment, so it is generally not accurate.