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Premenstrual Syndrome (PMS) can mimic vaginal infection symptoms like itching and discharge. Learn how to tell the difference and when to see a doctor.

Dr Singh explains that during Premenstrual Syndrome (PMS), the drop in oestrogen levels before your period causes your vaginal pH to rise, making it less acidic. This shift creates an environment where harmful bacteria or yeast can thrive more easily, increasing the risk of infections like bacterial vaginosis or yeast infections.

Lower oestrogen can also lead to temporary vaginal dryness, which may cause itching, discomfort, or irritation, especially in women sensitive to hormonal changes.

Additionally, as progesterone rises and oestrogen falls during the luteal phase (after ovulation but before your period), vaginal discharge often becomes thicker, creamier, or sticky. While this change is normal, it can feel different from your usual discharge.

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PMS itself doesn’t cause a vaginal infection but can mimic one. However, the rise in vaginal pH during PMS can create conditions that increase the risk of infections, like bacterial vaginosis or yeast infections.

According to Dr Singh, both PMS and infections can cause changes in the amount, colour, and consistency of vaginal discharge. Some infections, like yeast infections, can cause itching and irritation in the vaginal area. This can also be a PMS symptom. “Menstrual cramps, a common PMS symptom, can be similar to the pain associated with certain vaginal infections. PMS is known for mood swings, while some infections can also cause irritability and fatigue,” Dr Singh explains.

While pre-menstruation-related vaginal infections are normal and resolve on their own, there are a few red flags to consider:

Management tips include:

• Stress management techniques: Practices like yoga and mindfulness can be beneficial.
• Cognitive Behavioural Therapy (CBT): Effective for addressing psychological symptoms.

PMS can sometimes feel like a vaginal infection, but it’s usually just your hormones at play. That said, the hormonal changes before your period can make you more prone to real infections. If you notice an unusual discharge, a strong smell, or persistent itching, it’s best to check with a doctor. Staying active, managing stress, and eating well can help keep things in balance.