The cause of<unk>  remains unknown. It seems that both genetics and environmental contribute to the cause. <unk><unk>  for<unk>  include a young age, a female sex and a positive family history.
Migraine risk factors
Glaucoma risk factors
Ischemic stroke risk factors
Headache risk factors
Transient ischemic attack risk factors
Epilepsy risk factors
Seizure risk factors
Subarachnoid hemorrhage risk factors