Although headaches are not a common symptom, some reports suggest that people with multiple sclerosis have an increased incidence of certain types of headache.
One report noted that migraine headaches were twice more common in a group of people with multiple sclerosis than in a matched group of people without multiple sclerosis.
Other investigators found a prior diagnosis of migraine in one-third of the multiple sclerosis group being studied.
A third study found that 20 per cent of a sample group of people with multiple sclerosis had a family history of migraine, compared to 10 per cent of controls, suggesting that there may be a common predisposing factor to both multiple sclerosis and migraine.
Vascular or migraine type headaches have even been reported as the first symptom of multiple sclerosis.
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