Long-term constipation suddenly normal if it is due to the improvement of lifestyle habits, and the normal nature of the stool, usually a good thing. However, if the patient appears obvious diarrhea, stools are not shaped, or have obvious discomfort, it may be bad. 1. Most of the patients with long-term constipation is due to poor living habits, if the patient recently there is to improve the behavior of living and dietary habits, such as drinking more water, eat more dietary fiber-rich coarse grains, fresh fruits and vegetables, more exercise, etc., and the shape of the patient’s stools, odor, etc., there is no obvious abnormality, there is no blood, pus, and other abnormal substances in the stools, then it is generally a good thing. 2. However, if the patient’s constipation is suddenly normal, accompanied by abdominal pain and bloating, nausea and vomiting, loss of appetite and other symptoms, or the stool is not shaped, there is blood in the stool, pus and other substances, usually it may be a bad thing, need to pay attention to, and can be considered gastroenteritis, intestinal cancer and other diseases. If the patient’s long-term constipation is suddenly normal and accompanied by discomfort, it is recommended to consult a doctor in time to identify the cause of the disease, and follow the doctor’s instructions to carry out targeted treatment, so as not to delay the condition.