Inflammatory Bowel Disease Cases Rise Fivefold in Brazil

Overview

• A new study using Brazil’s public health registry reports prevalence of Crohn’s disease and ulcerative colitis rose from 30 to 158 cases per 100,000 between 2012 and 2025 and annual incidence increased from 9.35 to 12.34 per 100,000.
• Researchers project incidence could reach 22.7 per 100,000 and prevalence 264 per 100,000 by 2035 and say the conditions could become a public‑health priority comparable to hypertension or diabetes by 2040 if trends continue.
• Findings are based on Sistema Único de Saúde (SUS) records and were presented by Brazilian researchers in collaboration with national and international universities at a national coloproctology congress.
• Authors describe the diseases as autoimmune and multifactorial and point to genetic factors plus environmental drivers such as pollution and rising consumption of ultraprocessed foods, with researchers noting food additives as a possible contributor to gut inflammation.
• Clinically and economically, the rise matters because IBD is lifelong with no cure, many patients are diagnosed young, treatment aims to control inflammation, and high-cost therapies can reach roughly R$500,000 per patient per year, creating a long-term burden for patients and the health system.