A stabbing pain in the upper part of the right chest may be due to a variety of reasons such as heart disease, lung disease, breast disease, intercostal disease and others. 1. Heart disease: patients with coronary heart disease are prone to angina pectoris due to narrowing of coronary arteries and insufficient blood supply. Angina pectoris can manifest as paroxysmal pain in the precordial region. 2. Lung diseases: lung infection, pneumothorax, pleural effusion and other diseases can lead to a burst of stabbing pain in the patient’s chest. 3. Breast disease: If you are a woman, you should also consider whether the tingling is due to breast diseases such as cystic breast hyperplasia and mastitis. 4. Intercostal diseases: right intercostal neuritis, costochondritis, can lead to symptoms of paroxysmal stabbing pain in the right chest, and mostly distributed along the intercostal space. There may be other reasons for the persistent stabbing pain in the right chest, so it is recommended to consult a doctor as soon as possible for symptomatic treatment.