A sinus infection spreading to the brain is rare but serious. It can lead to dangerous conditions such as meningitis, brain abscess, or encephalitis. How To Tell If Sinus Infection Has Spread To Brain Recognizing the symptoms early is crucial for preventing life-threatening complications.
Key warning signs include severe headaches, high fever, neck stiffness, confusion, vision problems, nausea, seizures, and personality changes. These symptoms indicate that the infection may have traveled beyond the sinuses, requiring immediate medical attention.