I found a patient who has alopecia areata, it started a month back. He is found to have H.pylori infection. i wonder if there is relation between the two.
The related theory is that cross-reactivity induced by antibodies produced against H. pylori reacts against different cells. The infection has also been implicated in the development of aplastic anemia.
Alopecia areata is an immune mediated inflammatory hair loss, which occurs in all ethnic and age groups, and both sexes. However no significant etiology has been known for this disease. Helicobacter pylori (H. pylori) , is an organism colonized in gastric mucosa. This bacterium has been associated with certain extra-digestive dermatological conditions. The causal relationship between alopecia areata and H. pylori infection has been discussed in literature.