- Anniversary
- Membership
- Publications
- Resources
- Education
- Events
- Advocacy
- Careers
- About
- For Pain Patients and Professionals
Ulcerative colitis (UC), also known as chronic nonspecific UC, is an inflammatory bowel disease characterized by diffuse colonic mucosal inflammation. The incidence and prevalence of UC have risen markedly, and the disease seriously affects the quality of life of patients and imposes a great burden on the world health care infrastructure and economy.