Dizziness with phlegm in the throat may be caused by an acute respiratory infection, or it may be caused by a multi-system disease. It is recommended to seek medical attention as soon as possible to avoid delays. 1. Acute respiratory infections: acute infectious diseases of the nose, throat, bronchial tubes, lungs and other parts of the body can cause coughing, phlegm, dizziness and other discomforts, due to the lack of breath, hypoxia is easy to occur, triggering headaches, dizziness and other symptoms. 2. Multi-system diseases: hypertension patients combined with chronic respiratory tract infections can be two diseases at the same time and symptoms of phlegm in the throat, dizziness; respiratory diseases combined with other easy to cause dizziness diseases such as otolithiasis, anemia, intracranial lesions, etc., can also appear phlegm in the throat, dizziness symptoms. If you have phlegm in the throat and dizziness at the same time, it is recommended that you consult a doctor in time to find out the cause of the problem, and only after the cause of the disease has been clarified can the disease be treated according to the cause.