Causes of sporadic heart tingling for a second: 1. The possibility of intercostal neuralgia is considered to be high when the heart tingles for a second from time to time. Patients with intercostal neuralgia tend to have tingling and throbbing pains that last for several seconds, and it is important to perform relevant examinations and consider intercostal neuralgia after excluding organic lesions. 2. Some patients with myocardial pericarditis also have heart tingling pains, and they can do cardiac enzymes and troponin tests to help diagnose them. 3. Patients with gastric ulcer and duodenal bulb ulcer also show tingling pains in the left chest, which are related to diet. 4. Although it is rare, we should pay attention to exclude the possibility of coronary artery disease and unstable angina, so we should routinely do electrocardiogram to further exclude it.