The brain rumination can not be controlled, initially considered to be caused by mental factors, if it occurs occasionally, such as excessive stress, anxiety, etc., generally after moderate rest or entertainment, rumination can be well controlled. If this happens for a long time and is difficult to recover from, has seriously affected normal life or is accompanied by sleep disorders, thought disorders and other mental symptoms, it may be caused by some mental disorders such as diseases, it is recommended to seek medical attention to take relevant treatment measures. 1, anxiety disorders, depression: anxiety disorders and depression often accompany the appearance. Such patients are prone to depressed mood, excessive and persistent worry and fear, often thinking too much and difficult to control, which may affect daily activities and even threaten the life of the patient in serious cases; 2, obsessive-compulsive disorder: patients have obsessive-compulsive ideas or compulsive behavior, the brain can not control the random thoughts may also be the phenomenon of obsessive-compulsive ideas, the patient knows that it is meaningless to think this way but still can not control; 3. Schizophrenia: Patients with various causes of schizophrenia may also experience rumination, and patients will generally have abnormal thoughts accompanied by abnormal behavior, such as overexcitement and shouting for no apparent reason. In addition, if there are organic lesions in other parts of the body, such as circulatory system diseases, digestive system diseases, respiratory system diseases, etc., there may be some accompanying symptoms that cause physical discomfort, which may lead to ruminations and uncontrollable thoughts. It is recommended that the patient should observe the patient’s current medical history and accompanying symptoms, and if necessary, seek timely medical attention to improve the relevant examination.