If a young patient, self-conscious currently have a feeling of heart fibrillation, may be arrhythmias, disease factors, as follows: 1, arrhythmia: to exclude whether the patient is really atrial fibrillation, or other types of more serious arrhythmias, it is best to be able to do an electrocardiogram to identify when the onset of uncomfortable symptoms, it is not possible, but also to do a 24h ambulatory electrocardiogram. 2, disease Factors: Patients feel fibrillation, in fact, there is no problem with the electrocardiogram, we should consider whether there is hyperthyroidism, or cardiac neurosis caused by the patient is recommended to check the five items of blood tests, if necessary, you can do a psychological assessment scale. Patients are advised to relax, take regular rest and avoid straining and staying up late to help improve the discomfort. If it is indeed due to atrial fibrillation, look for hyperthyroidism or hypokalemia, as atrial fibrillation is often caused by some substantial problem.