There are many causes of headaches in girls, such as the following.1. If a headache occurs in a young woman, consider it to be a migraine. Migraine is very common in clinical practice. Migraine is mainly episodic, with throbbing pain on one or both sides of the head, usually accompanied by nausea and vomiting. Some patients may have visual aura, such as distorted light and distorted vision before the attack, and about 2/3 of patients have a family history of migraine. 2. If the headache persists and gradually worsens, intracranial tumor or intracranial occupying factor cannot be ruled out, and head CT or head MRI should be improved in time. 3. If the headache is accompanied by fever, neck pain and neck ankylosis, it should also be considered as central nervous system infectious disease, such as encephalitis and meningitis.