Nausea Before Period
Nausea in the days before your period is a common but often overlooked PMS symptom. It is linked to hormonal changes in the luteal phase, particularly prostaglandin production.
Medical disclaimer
This content is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Dawn Phase is not a medical device. Always consult a qualified healthcare professional with questions about your health.
What causes it
Rising prostaglandins before your period can cause nausea, particularly when they affect the digestive system. Hormonal fluctuations in estrogen and progesterone in the luteal phase also contribute. Nausea can worsen with low blood sugar.
Track this symptom across your cycle
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Log nausea intensity and timing relative to your period start date. Note whether it correlates with food, time of day, or other symptoms like cramps or bloating. Consistent patterns across cycles confirm it is cycle-related.
When to see a doctor
See a doctor if nausea is severe, persists through your period, is accompanied by vomiting, or is a new symptom that has appeared without explanation.
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Log symptoms daily and see how they connect to your cycle phases.
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