Pulmonary embolism combined with a cold can indeed cause a fever, which is a relatively common occurrence. However, it typically results in a low-grade fever. Additionally, it is important to note that if pulmonary embolism is combined with pulmonary infarction, it can also lead to a fever, usually manifesting as a low-grade fever. Therefore, pulmonary embolism itself can potentially cause a fever. Furthermore, it is crucial to be aware that if pulmonary embolism leads to a fever, it should not be misdiagnosed as a common cold or pneumonia. Especially in patients with concurrent pulmonary infarction, the presence of a fever, and subpleural patchy shadows seen on chest CT can resemble the manifestations of pneumonia. Care must be taken to avoid misdiagnosis as pneumonia, which could delay treatment for the patient and potentially lead to severe consequences.