Crohn's disease
A chronic inflammatory bowel disease. Medical term; used in clinical and everyday contexts.
Crohn's disease is a condition that causes inflammation in the digestive tract.
He was diagnosed with Crohn's disease and started treatment.
Named after Dr. Burrill B. Crohn, who described the disease in 1932. The Japanese term is a direct loan from English 'Crohn's disease' combined with 病 (disease).