Crohn's disease is a chronic, progressive, inflammatory disease of the wall of the bowel, in which affected portions become inflamed and the lining becomes ulcerated, fissured and thickened. These constricted sections of gut are separated by healthy sections. Although Crohn's disease can affect any part of the bowel, it usually attacks the lower part of the small intestine (the ileum). The disease was named after Burrill Bernard Crohn, an American gastroenterologist, who published a paper describing the features of the then relatively unknown condition in 1932.
Around 5 to 8 people in every 100,000 develop the disease, usually during their twenties or thirties. Although it seems to affect both men and women equally, it is less common in black people than in white.
In this section, you can learn the causes and symptoms of Crohn's disease, along with the methods of its diagnosis and treatment.