A lesser-known, but nonetheless potent form of headachesThe cervicogenic headache receives a smaller portion of the spotlight than migraines or tension headaches, which are thought to affect up to one out of every six adults in the United States. The American Migraine Foundation defines a cervicogenic headache as a secondary headache- that is, caused by another condition. In this case, the headache's source is derived from a disorder in the cervical spinal segment, where there is a complex relationship between spinal bones, spinal nerves, intervertebral discs and soft tissues. Let's dive a little deepr into the causes of cervicogenic headaches.