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UTIs and Menstrual Cycle Effects
March 31st, 2026

Can a UTI Delay Your Period?

UTIs themselves don't directly delay your menstrual period. However, the stress that UTIs place on your body can potentially disrupt your hormonal balance and menstrual cycle. When your body is fighting an infection, it releases stress hormones like cortisol, which can interfere with the normal production of reproductive hormones. Studies show that physical stress from infections can cause cycle irregularities in about 15-20% of women. Additionally, some antibiotics used to treat UTIs may affect gut bacteria that help metabolize hormones, potentially causing minor cycle changes. If you're experiencing both a UTI and a delayed period, they're likely separate issues that should each be evaluated by a healthcare provider.

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