https://www.youtube.com/watch?v=DcdhZnJRNlA This illustrated video from Michael Davis shares a little more information about Crohn's disease. Davis explains that there's no known cause for Crohn's disease but scientists think that an overreaction by the immune system is triggered by a virus or bacteria and that certain people are genetically predisposed to developing the disease. MORE: Find out why Crohn's disease is so difficult to diagnose Symptoms of the disease include abdominal pain, diarrhea, bloody stools, weight loss, loss of appetite, fatigue and fever. Flares can last anywhere from weeks to months. There is currently no cure for Crohn's disease but there are treatments and medications that can help control the symptoms and the disease can be managed to a certain extent by lifestyle changes. Some patients with moderate to severe cases of Crohn's disease may need surgery. MORE: Read our seven tips to help you better manage your Crohn’s flares. IBD News Today is strictly a news and information website about the disease. It does not provide medical advice, diagnosis or treatment. This content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or another qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.