If a patient has pain near the left posterior scapula, it is important to rule out whether it is caused by trauma, where trauma to the left posterior scapula can lead to fractures, bone fractures, and soft tissue contusions that can cause pain. In addition, extra attention should be paid to some high-risk chest pains, such as tension pneumothorax on the left side, aortic embolism, pulmonary embolism or acute coronary syndrome, and for moderate risk chest pains often coronary artery disease, unstable angina, myocarditis, pericarditis, endocarditis, hypertrophic obstructive cardiomyopathy. Diseases of the respiratory system, such as massive lung infections and pleural effusions, can also present with pain in the left posterior scapula. These symptoms can also occur in mildly dangerous chest pains, such as when the patient has shingles, costochondritis, costochondritis, or intercostal neuralgia on the left side.