If the left side of the heart feels like pins and needles, the following possibilities should be considered: first, the pins and needles-like sensation should be considered whether there is intercostal neuralgia, a symptom that is generally limited to 1-2 intercostal areas, and the pain is long, and not a paroxysmal attack. Second, the pain is sometimes triggered or aggravated by a change in position. Thirdly, when there is pinprick pain on the left side of the heart, we should also consider whether the patient has the possibility of coronary angina, because when there is coronary angina, it may lead to the symptoms of chest pain on the left side, but it is the main symptom of paroxysmal onset, and in general, it can be induced after activity, at this time in the pain, we need to give the patient an electrocardiogram, to see whether there is In this case, we need to do an electrocardiogram to see if there are any dynamic changes in the electrocardiogram, and a coronary CTA or coronary angiogram can be done to clarify the diagnosis.