The impact of CD varies greatly from person to person. Moreover, the course of the disease is unpredictable, with symptoms that appear and disappear. A person with CD may feel fine for months, and then a flare may occur suddenly.
At the time of diagnosis, most patients only have inflammation.
One in three patients already have complications (stenosis/obstruction, fistula, abscess) at the time of diagnosis. During the first 20 years of having the disease, one in two patients develop complications.4
One in two patients will undergo surgery within 5 to 10 years following the diagnosis.4