What should you know about high blood pressure and headache during period?

Hormonal changes, migraine, poor sleep, missed meals, dehydration and pain can all occur around menstruation. Pain and anxiety may temporarily raise a reading, but a headache alone does not establish hypertension. High blood pressure may also have no symptoms, so readings should be interpreted rather than guessed from how you feel.

Record the first day of bleeding, headache timing, severity, visual symptoms, vomiting, medicines and blood-pressure readings. A clinician may consider [hypertension](/conditions/hypertension/), migraine and medicine effects together.

Sit quietly before repeating a home reading, use the correct cuff and write down both numbers with the time. Rest in a dark, quiet room if light or noise worsens the headache, drink normally and eat regular meals. Use only pain relief that is suitable for you; ask a pharmacist or clinician if you have kidney disease, stomach ulcers, pregnancy concerns or blood-pressure treatment.

Arrange a [GP Consultation](/treatments/consultations-and-assessment/gp-consultation/) if the pattern recurs, readings remain high, headaches are new or unusually severe, or treatment is not helping.

Seek emergency help for a sudden thunderclap headache, new weakness or numbness, trouble speaking, fainting, severe confusion, chest pain, breathlessness, seizure or sudden vision loss. Do not assume these symptoms are menstrual; they require prompt assessment for serious causes such as [stroke](/conditions/stroke/).

Ask how to measure at home, whether your headache pattern fits migraine, which pain medicines are appropriate, and whether hormonal contraception or other medicines affect pressure. Share your cycle diary, readings, family history and any visual or neurological symptoms.