A 24-hour ambulatory electrocardiogram (ECG), which is completely normal, does not require treatment based solely on the results of this one auxiliary test. However, the diagnosis and treatment of the disease should be based on a combination of symptoms, signs and symptoms, laboratory and auxiliary tests, and should not rely solely on a single test result to determine the diagnosis and treatment plan, but should be based on comprehensive information to analyze the specific situation. The 24-hour ambulatory electrocardiogram (ECG), which allows for continuous ECG testing and recording under changing physical and mental conditions, can detect transient ECG abnormalities that are not easily detected by conventional ECG. If the 24-hour ambulatory electrocardiogram, the result is completely normal can only mean that it fails to capture the onset of heart disease within 24 hours of wearing the device. If there are no uncomfortable symptoms in normal times, and other auxiliary tests do not show any abnormalities, heart disease is generally not considered to be present, and therefore treatment is generally not required. However, if the 24-hour dynamic electrocardiogram results are normal, but there are uncomfortable symptoms such as chest tightness, chest pain, and other auxiliary examination results are abnormal, further more definitive means of examination, such as exercise plate, coronary CTA, angiography, and so on, need to be taken to further clarify the diagnosis. Warm reminder: if there is chest discomfort, should be timely near the electrocardiogram examination, and timely hospital consultation, so as not to delay the condition.