What Causes Vaginal Yeast Infection
A vaginal yeast infection, also known as candidal vaginitis or vaginal thrush, is primarily caused by an overgrowth of the Candida fungus in the vagina. Candida albicans is the most common type of yeast responsible for these infections, although other Candida species can also cause similar problems.
Several factors can contribute to the development of a vaginal yeast infection:
- Antibiotic Use: Antibiotics can disturb the natural balance of microorganisms in the body, including the beneficial bacteria that keep yeast in check. This imbalance can lead to an overgrowth of Candida.
- Weakened Immune System: Individuals with weakened immune systems, such as those with HIV/AIDS or those undergoing chemotherapy, are more susceptible to yeast infections.
- Pregnancy: Changes in hormone levels during pregnancy can alter the vaginal environment, making it more conducive to yeast overgrowth.
- Diabetes: Uncontrolled diabetes can lead to higher sugar levels in vaginal secretions, providing a favorable environment for yeast growth.
- High Estrogen Levels: Some women are prone to yeast infections around the time of their menstrual cycle due to hormonal changes, particularly elevated estrogen levels.
- Uncontrolled Blood Sugar: People with diabetes, especially if their blood sugar levels are not well managed, are at higher risk.
- Sexual Activity: While yeast infections are not classified as sexually transmitted infections (STIs), they can be triggered or exacerbated by sexual activity. The pH balance of the vagina can be affected during sex, making it easier for yeast to grow.
- Poor Diet: Diets high in sugar and refined carbohydrates can contribute to yeast overgrowth, as Candida thrives on sugar.
- Tight Clothing and Non-Breathable Fabrics: Wearing tight-fitting pants or underwear made from non-breathable materials can create a warm, moist environment, which is ideal for yeast to thrive.
- Stress: Although the relationship is not entirely understood, chronic stress might weaken the immune system, potentially making individuals more susceptible to yeast infections.
