What are common symptoms of Crohn's disease?

Crohn's disease is a type of inflammatory bowel disease (IBD) that primarily affects the gastrointestinal tract. The symptoms of Crohn's often include diarrhea, which may be severe and persistent due to the inflammation in the bowel. Abdominal pain is also a hallmark symptom, often resulting from intestinal inflammation, strictures, or obstruction. Additionally, abscesses and fistulas can occur due to the severity of the disease, leading to abnormal connections between different parts of the intestine or between the intestine and other structures, such as the skin or bladder.

The nature of Crohn's disease can cause it to affect various areas of the digestive tract, contributing to the diversity of symptoms experienced. While nausea and vomiting can be present in some cases, they are not as characteristic or prevalent as the symptoms outlined in the correct choice. Similarly, pain during urination is not associated with Crohn's disease; it is more likely related to urinary tract infections or other urological conditions. Chest pain and breathing difficulties are generally not symptoms of Crohn's disease but could suggest other health issues needing attention. Therefore, the combination of diarrhea, abdominal pain, and the potential for abscesses or fistulas accurately reflects the primary and serious manifestations of Crohn's disease.