A cross-sectional study on the association between Helicobacter pylori infection and headache.

Background: The relationship between chronic Helicobacter pylori (HP) infection and headache has been discussed for long; nevertheless, the results of the studies are still contrasting.

Objective: This cross-sectional study is aimed to investigate a possible association between HP and headache, mainly migraine.

Methods: We screened, by a self-administered questionnaire, the subjects undergoing a breath test or an esophagogastroduodenoscopy.