# Helicobacter pylori and acne vulgaris: is there a relationship?

## TL;DR

This study finds a strong link between Helicobacter pylori infection and acne vulgaris, especially in severe cases.

## Contribution

The study provides new evidence that H. pylori infection is significantly associated with acne severity.

## Key findings

- H. pylori infection rates were significantly higher in acne vulgaris patients compared to healthy controls.
- Severe acne vulgaris patients showed higher H. pylori antigen and antibody levels than mild cases and controls.

## Abstract

Background: Helicobacter pylori (H. pylori) is a gastric Gram-negative, spiral-shaped microaerophilic pathogen. H. pylori may play a potential pathogenic role in extra-intestinal diseases such as hepatobiliary, respiratory, and dermatological disorders. The latter included chronic urticaria, psoriasis and rosacea. The first report in literature on the relationship between H. pylori and acne vulgaris (AV), found association between severe AV and H. pylori infection. There are very limited data in AV patients addressing the impact of H. pylori infection on various severities. In this context, the aim of the present work was to determine the association of H. Pylori infection among AV patients and correlate it with the disease severity. Methods: This case-control study included 45 Patients with AV and 45 age and sex matched healthy volunteers as a control group. H. pylori antigen in stool and serum H. pylori antibody IgG using commercially available ELISA kits was tested in all included subjects. Results: The percentage of participants with a positive H. pylori antigen in stool and positive H. pylori antibody in serum in the whole study population was 35/90 (38. 9%) and 41/90 (45. 6%). On comparing between the percentages of positive H. pylori antigen in stool and positive H. pylori antibody in serum between the patients with AV and healthy controls, a highly statistically significant difference was found between the two groups (P < 0.001, P = 0.006). On comparing between the percentages of positive H. pylori antigen in stool and positive H. pylori antibody in serum in the patients with different grades of acne severity and healthy controls, the rate of positive H. pylori antigen in stool and positive H. pylori Ab in serum was significantly associated with severity of acne comparing with healthy controls (p < 0. 001). Conclusion: The rate of H. pylori infection in patients with AV is high so it may influence the pathogenesis of this skin disease. Patients with severe AV had higher rates of H. pylori antigen in stool and H. pylori antibody in serum as compared to the patients with mild AV and healthy controls.