Digitalis poisoning not only shows gastrointestinal symptoms, but also damages the nervous system. Digitalis intoxication has a greater impact on the heart, and the electrocardiogram abnormalities that appear mainly include the following manifestations: 1. After digitalis intoxication, there will be characteristic electrocardiogram manifestations, that is, the ST-T segment will become fishhook-like changes. 2. After digitalis intoxication, there will be bradycardia, and there will be atrioventricular block and arrhythmia. 3. After digitalis intoxication, the patient will have new arrhythmia, and there will be The patient may develop new arrhythmias, as well as junctional arrhythmias. When digitalis intoxication is more serious, patients often have ventricular tachycardia, ventricular fibrillation and other phenomena, should go to the hospital in time for treatment.