08/18/2026
“I feel like I have a completely different body the week before my period.”
If you’ve ever said this, your menstrual cycle may be an important piece of the puzzle. Research suggests that hormonal fluctuations across the menstrual cycle can influence immune activity and that some autoimmune conditions can worsen during the premenstrual phase.
That doesn’t mean hormones are necessarily the cause of your autoimmune disease, but they may influence how your symptoms behave.
Start tracking symptoms + cycle day for a few months. Patterns can be incredibly valuable when trying to understand your individual triggers.
Educational content only; autoimmune symptoms should be evaluated and managed based on your individual diagnosis and clinical history.