Many causes of ulcerative colitis can be controlled, such as diet and digestive health. However, other variables may be harder to prevent including genetic factors. Genetic factors are an inherent part of us and largely define our health. For some people, their genes may make them more likely to develop conditions of the digestive tract, including ulcerative colitis. Identical twins, for example, have a higher risk of suffering from this disease. Certain ethnicities may also be more likely to get ulcerative colitis. If you experience symptoms of the digestive system, contact your doctor to find out the cause.