Birth Control & Women's Health

What Causes Recurring Yeast Infections?

Linda Girgis | MD

Medically reviewed by Linda Girgis | MD, Girgis Family Medicine on August 21st, 2026.

Recurring yeast infections are typically caused by an overgrowth of Candida albicans fungus due to disrupted vaginal pH balance. Common triggers include antibiotic use, which kills beneficial bacteria that normally control yeast growth, hormonal changes during pregnancy or menstruation, diabetes with poor blood sugar control, and a weakened immune system. Lifestyle factors like wearing tight, non-breathable clothing, excessive douching, and high sugar diets can also contribute. Studies show that 75% of women experience at least one yeast infection, while 5-8% develop recurrent infections defined as four or more episodes per year. Identifying and addressing underlying causes like blood sugar management or antibiotic alternatives can help break the cycle.

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