Introduction to Migraine Headache

Migraine Headache and Pregnancy

Migraine attacks that occur during pregnancy are experienced most often during the first trimester but can occur at anytime throughout the pregnancy. There is a subgroup of women who have a respite from migraine headaches during their pregnancy, especially women who experience migraine without aura. Migraines during pregnancy typically maintain the same pattern of presentation as before pregnancy, though some women find that their headaches intensify. The obstetric health care provider may opt to consult with a neurologist to determine the most effective approach for managing migraines during pregnancy.

It is rare for migraine headaches to appear for the first time during pregnancy (de novo headaches. A de novo headache must be carefully evaluated to determine if it is a true migraine or if it is an indication of more serious conditions that can occur during pregnancy such as hypertension, eclampsia or preeclampsia, hypothyroidism (reduced thyroid function), or stroke. The appearance of a first time serious headache during pregnancy raises the diagnostic suspicion for an underlying condition and a specialist may need to be consulted.