Generally speaking, 30 years of chronic colitis does not suddenly get better. Chronic colitis is a chronic inflammatory disease caused by a variety of reasons related to infection, immunity, genetics, food allergies, defense dysfunction and mental factors. It can occur at any age and is more common in young and middle-aged people. Chronic colitis usually develops slowly and is prone to recurrence. It is generally more difficult to cure, but aggressive treatment can ease the progression of the disease and reduce uncomfortable symptoms. Therefore, 30 years of chronic colitis is not going to suddenly get better. When longer chronic colitis occurs, it is recommended to go to the hospital and take appropriate treatment under the guidance of the doctor to promote better recovery, and pay attention to good living habits and drink less cold beer and other foods with lower temperatures.