Cervical artery dissection is a medical condition where a tear occurs in the inner lining of the cervical arteries, which supply blood to the brain. This tear can lead to blood clots and reduced blood flow, potentially causing a stroke. It often occurs due to trauma, such as whiplash from a car accident, or can happen spontaneously without any clear cause. Symptoms of cervical artery dissection may include severe neck pain, headaches, and neurological issues like vision problems or weakness. Diagnosis typically involves imaging techniques like MRI or CT scans to visualize the arteries. Treatment may include medications to manage symptoms and prevent complications.