Causes of secondary headache
Temporomandibular joint, or TMJ, dysfunction, can be a cause of secondary headache. Secondary headaches result from underlying disorders that produce pain as a symptom. The TMJ may become painful and dysfunctional as a result of incorrect alignment of teeth and jaws. In severe cases, the TMJ may require surgical correction.
Harvey Simon, MD, Editor-in-Chief, Associate Professor of Medicine, Harvard Medical School; Senior Physician, Massachusetts General Hospital.
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