Vertebral Artery Dissection is a condition where a tear occurs in the inner lining of one of the vertebral arteries, which supply blood to the brain. This tear can lead to the formation of a blood clot, potentially blocking blood flow or causing a stroke. Symptoms may include neck pain, headache, dizziness, or neurological deficits. The dissection can happen due to trauma, such as whiplash from a car accident, or spontaneously without any clear cause. Diagnosis typically involves imaging techniques like MRI or CT scans, and treatment may include medications to manage symptoms and prevent complications.