Stretching chest pain is recommended to go to the thoracic surgery examination, usually pleurisy, costochondritis, myocarditis, etc. can cause stretching chest pain. 1. Pleurisy: Pleurisy is an inflammation that occurs in the pleural cavity caused by bacterial and viral infections. The condition is mild and asymptomatic, but stretching pulls the pleura, causing chest pain. The treatment is mainly causative, such as the use of penicillin and other treatments for bacterial infections, diet to strengthen nutrition, give high protein, high vitamin diet. 2. Costal chondritis: there is no clear cause of the disease, which occurs in young and middle-aged people, and chest pain can occur when stretching activities. Treatment is mostly symptomatic, with pain relieving and anti-inflammatory drugs such as aspirin, indomethacin and other drugs, drugs can be ineffective hormone closure therapy, such as injection of procaine local closure. 3. Myocarditis: myocarditis is mostly viral, bacterial, mycoplasma and other infections, the severity of which varies greatly, can be completely asymptomatic, but also can appear dyspnea or even sudden death, stretching the pericardium can be caused by traction chest pain. Pain is a sign of disease occurrence, it is recommended to be admitted to the hospital for examination and treatment, so as not to delay the condition.