Most symptoms affect the small intestine, but really the only part of the small intestine is infected which would be the last segment, known as the ileum. Some manifestations are also confined to the colon area. In either place, irritation can range from mild to severe. Most of these pains develop gradually, but every so often can come sudden without any warning. There might be periods of time with the disease where you experience no symptoms at all which is called remission. When the disease is active here are some signs to look for: diarrhea, fever and fatigue, abdominal pain and cramping, blood in your stool, mouth sores(cold sores), diminished appetite and weight loss, perianal …show more content…
It was once thought that diet and stress were a main source but doctors then discovered those two things only aggravate the disease, not cause it. Heredity and a malfunctioning immune system most likely play a role in its development. The immune system causes Crohn's disease by a virus or bacterium triggering it. When your immune system tries to fight off the invading microorganism, it mistakenly attacks the cells in the digestive tract. Heredity plays a key role because proven facts show that if you have family with the disease, you are more likely to get