A burst of pain in the chest is often considered mastitis, costochondritis, coronary heart disease, trauma and so on. 1. Mastitis: Most common in breastfeeding women, the bacteria from the nipple retrograde into the breast, causing localized purulent infection of the breast. It is usually characterized by localized pain in the chest, and the patient may also have fever and chills. 2. Costochondritis: most costochondritis is a kind of non-specific inflammation, and a very small part of it will be accompanied by infectious inflammation, which is mainly manifested as stabbing pain in the chest, and the pain can be radiated to the back. 3. Coronary heart disease: caused by narrowing or occlusion of coronary artery wall, the typical manifestation is chest pain, chest tightness, most of them are squeezing pain, which can be triggered by emotional excitement or exertion. 4. Trauma: trauma leads to chest soft tissue injury or rib fracture, manifested as chest pain, chest tightness, etc., coughing or deep breathing pain can be aggravated, localized visible skin lesions or bruises. There are other causes of chest pain, it is recommended that patients go to the regular hospital in time to avoid delaying the condition.