Rising Incidence of Inflammatory Bowel Disease in the Asian Subcontinent—An Exploration of Causative Factors

Inflammatory bowel disease (IBD), comprising ulcerative colitis (UC) and Crohn’s disease (CD), is a global health problem with a worldwide increase in incidence. While previously it was more prevalent in Western countries, especially in North America and Europe, there has been a recent sizeable increase in the incidence of IBD in Asia. This article is a brief overview of the causative factors that contribute to this rise in IBD cases in Asian countries. There is a notable disparity between the Asian IBD population and the Western one in terms of age distribution and gender predilection, and genetic studies reveal both shared and unique susceptibility loci. Changes in environmental factors, including alterations in diet, hygiene, and lifestyle, are thought to play a key role in the epidemiological transition observed in Asia. It is crucial to comprehend how genetic predisposition interacts with environmental factors in order to understand the causes of IBD in the Asian population and develop precise interventions to alleviate its impact.