Conclusion:
The internal jugular vein is crucial in intensive care units and head and neck surgeries. Handling the internal jugular vein without considering anatomical variances is fatal. Early detection of these anomalies allows for necessary measures to avoid patient injury (e.g., discussions with the patient and surgeons about ideal solution anesthetics plans, cannulation sites, monitoring tactics, and thus further inquiry prior to operation). The most common headache symptom is usually caused by that benign, and it can generally be detected after a comprehensive history and targeted neurologic and overall physical tests. Headache caused by cerebral venous abnormalities is a new issue that all health care workers should be aware of this issue.