A dry cough after a fall resulting in a fracture of the lumbar region is mostly considered to be caused by prolonged bed rest or by the patient’s weak constitution, which can be treated with medication. When a person suffers a lumbar fracture after a fall, the patient may need to stay in bed for a long period of time during the recovery process because the bones in the lumbar region play a weight-bearing role for the body, or the patient may have a basic disease such as heart disease, or the patient may have a weak constitution, which may lead to a case of crushing pneumonia, causing coughing and other symptoms. Pneumatitis is a secondary bacterial infection caused by prolonged bed rest, resulting in lung stasis, edema, etc. Patients can go to the hospital for examination, and if there is an inflammatory reaction, oral antibiotics such as cefixime can be prescribed for antibacterial treatment. Patients should not only consider the possibility of pneumonia, but also consider the possibility of dry cough caused by other causes of lung injury, such as chronic pharyngitis, bronchitis, and so on. It is recommended that the patients concerned should seek medical examination to clarify the cause of the disease and target treatment.