There are many causes of migraine in pregnant women, and clinical examination may not always be able to clearly identify the specific cause, so the symptoms can be relieved mainly by improving the lifestyle, and if the headache is severe, drugs can be used cautiously under the guidance of a doctor. I. Common causes 1. Genetic factors: pregnant women may have a family history of migraine, and if there are several relatives in the family with migraine, pregnant women may also have migraine; 2. Insufficient local cerebral blood flow: pregnant women will have certain changes in blood flow due to pregnancy, and if there is insufficient local blood supply to the brain, it may also cause migraine; 3. Dietary factors: some pregnant women may also have migraine after ingesting certain foods. The common foods that are good for migraine include cheese, smoked fish, alcohol and chocolate, etc.; 4. Endocrine factors: Changes in hormone levels in pregnant women during pregnancy are also one of the causes of migraine in pregnant women; 5. Other factors: Emotional tension, hunger, lack of sleep, noise, bright light and climate change can induce attacks. 2. Treatment 1. Non-steroidal anti-inflammatory and pain-relieving drugs, such as aspirin, can be taken cautiously under the guidance of a doctor. 2. A light diet should be the mainstay of daily life, while a moderate amount of high-quality protein can be supplemented, and more fresh vegetables and fruits can be eaten. Avoid spicy and stimulating food, and do not drink strong tea, coffee, wine and other beverages; 3.