The yeast responsible for causing thrush is naturally present on the body and likes moist, warm conditions. It normally starts to overgrow and infects the vagina due to a change in the vaginal environment. Some of the reasons that may change the vaginal environment making thrush more likely to occur, include:

  • irritated or damaged vaginal skin (which can occur due sexual intercourse)
  • having poorly controlled diabetes
  • having a weakened immune system (for example, because of HIV or chemotherapy)
  • going through the menopause
  • being pregnant

taking long-term antibiotics

Although all of our content is written and reviewed by healthcare professionals, it should not be substituted for or used as medical advice. If you have any questions about your health, please speak to your doctor.

Authored Aug 13, 2020 by Joseph Issac, MPharm
Reviewed Jun 15, 2021 by Prabjeet Saundh, MPharm