[Headaches and multiple sclerosis]

The article discusses the possible association between multiple sclerosis (MS) and headache. MS has a broad range of neurological symptoms, but headache is not included among them. Research on the link between MS and headache focuses on primary headaches such as migraine, tension-type headache and cluster headache. Studies on the possible association between MS and migraine have had conflicting results and have found a wide range of prevalence rates for migraine in MS patients. The possible mechanisms proposed linking migraine and MS can be unidirectional, bidirectional or involving a common cause. The prevalence of TTH in MS patients is similar to that observed in the general population. Immunotherapy may play a role in inducing headache.