Often, chest pain on stairs may be caused by angina pectoris, myocarditis and so on. 1. Angina: angina is usually caused by myocardial ischemia, often accompanied by chest pain, chest tightness and other symptoms, angina patients who are overworked when going up the stairs, chest pain may occur. Patients should go to the hospital in time and apply medications under the guidance of the doctor for treatment, such as nitroglycerin and amlodipine. Patients can also take surgical treatment, such as coronary artery bypass grafting, percutaneous coronary intervention and so on. 2. Myocarditis: Myocarditis is caused by viral infections, parasites, etc. It is often accompanied by chest pain, palpitations and other symptoms, so the phenomenon of chest pain on stairs may occur. Patients should go to the hospital in time and apply medicines under the guidance of doctors for treatment, such as enalapril, ramipril and so on. Patients with serious condition also need to take surgery such as intra-aortic balloon counterpulsation for treatment. If the patient goes up the stairs and finds severe chest pain, it may also be caused by other causes, and it is recommended to go to the hospital for diagnosis and treatment in time.