Crohn's disease involves the inflammation of the bowels and digestive tract. The disease can cause pain and may lead to life-threatening complications, according to the Mayo Clinic. Therapeutic treatment exists to control symptoms, but there is no known cure.

Diarrhea

Diarrhea is the most common symptom of Crohn's disease. The inflammation of the digestive tract causes a production of excess water and salt, which leads to loose stool in most patients, according to the Mayo Clinic.

Abdominal Cramps

The restricted movement of food and other substances through the digestive tract may cause pain in the abdomen. The inflammation associated with Crohn's may cause a buildup of scar tissue. The movement of the food past the scar tissue may result in pain and cramping.

Bloody Stool

When food passes over the inflamed areas in the bowels, irritation and bleeding may occur at those sites. This may result in red blood being visible in the toilet following a bowel movement. Blood may also be darker and mixed with the stool, according to the Mayo Clinic.

Weight Loss

The inflammation of the bowel walls caused by Crohn's disease may affect the absorption of nutrients in food, and the irritation and cramping may lead to a decreased appetite. Both of these factors can contribute to weight loss.

Ulcers

Ulcers in the mouth are sometimes present in Crohn's disease patients, as is the development of intestinal ulcers. Crohn's disease sometimes results in the formation of sores, caused by infection, in the digestive tract, according to the Mayo Clinic. Ulcers often develop on these sores.

Source

Mayo Clinic