When a fracture causes a pleural effusion, 2-3 drains can be performed depending on the situation, and the frequency and interval should not be too frequent. If the amount of fluid in the pleural cavity is large, it is necessary to consider thoracentesis to extract the internal fluid, so as to alleviate the discomfort symptoms such as chest pain, chest tightness and dyspnea, and to carry out 2-3 times of thoracic drainage in order to remove the fluid in the chest cavity in a timely manner. When draining the pleural effusion, it is necessary to rest in bed and keep the correct position and posture, and at the same time, it is also necessary to follow the doctor’s instructions to use penicillin or levofloxacin and other drugs for infusion treatment to prevent infection, and it is also necessary to carry out local immobilization of the thoracic cavity, which will help the gradual dissipation of the effusion. The pleural effusion after the fracture may have certain impact on the chest cavity and lungs, need to follow the doctor’s advice to carry out the correct drainage treatment, but also pay attention to the daily active care, in order to promote the early recovery of normal.