The specific survival period of Crohn’s disease cannot be fully determined, it is mainly related to whether cancer has occurred and the severity of the patient’s condition, etc. If cancer has not occurred, the life expectancy will be longer, if cancer has occurred, the life expectancy may be shorter. Crohn’s disease is a kind of intestinal inflammatory disease, most of the disease progresses slowly, the condition is usually mild, and actively cooperate with the doctor to take the treatment of the survival period is relatively long, and generally can reach the normal life expectancy. In some patients, the disease is more serious and progresses more quickly, especially after cancerous lesions have occurred, which may lead to a series of complications, and relatively speaking, the survival time will be shorter, which may only be a few years. Once Crohn’s disease is diagnosed, it is important to actively cooperate with doctors to take treatment to control the disease.