Sudden pain in the chest can not move may be myocardial infarction, bone fracture or acute pleurisy caused by the need for timely lying down to rest, oral medication, external fixation treatment. 1. Myocardial infarction: myocardial ischemia and necrosis due to coronary artery obstruction and insufficient blood supply, resulting in severe pain in the chest, need to lie down and rest in a timely manner, to reduce the heart’s blood supply and oxygenation, sublingual nitroglycerin tablets to expand the vasculature treatment may cause severe hypotension, tachycardia, dizziness, etc., and allergy is contraindicated. 2. Fracture: such as rib fracture, due to trauma caused by rib fracture chest pain can not move, lying down to rest and external fixation to avoid substantial thoracic activities, and the use of non-steroidal anti-inflammatory drugs to relieve pain treatment, such as ibuprofen tablets, may cause nausea, vomiting, headache, tinnitus, skin rashes, etc., allergies, pregnant women and breastfeeding women are prohibited. 3. Acute pleurisy: when bacteria enter the chest cavity leading to pleural inflammation, chest pain, exertion, fatigue, etc., need to pay attention to rest, timely anti-infection treatment, can choose moxifloxacin and other antibiotics. If the chest suddenly hurts too much to move, it is recommended to consult a doctor in time, clarify the cause of the disease and then timely treatment, do not self-medication.