What does it mean if the left side of y head and face hurts?

Pain on the left side of the head and face can be caused by various factors, including tension headaches, migraines, or sinus issues. It may also indicate dental problems or, in some cases, more serious conditions such as a stroke or neuralgia. If the pain is severe, persistent, or accompanied by other symptoms like numbness or difficulty speaking, it's important to seek medical attention promptly to rule out any serious underlying issues.