Transmission
Several factors are associated with increased yeast infection in women, including
- Pregnancy
- Uncontrolled diabetes mellitus
- Oral contraceptives or antibiotics
- Douches
- Perfumed feminine hygiene sprays
- Topical antibiotics and steroid medicines
- Weakened or compromised immune systems
Wearing tight, poorly ventilated clothing and underwear also can contribute to vaginitis. Women with chronic (recurring) yeast infections should work with their health care providers to find out possible underlying causes.
Health experts do not know whether yeast can be transmitted sexually. Because almost all women have the fungus in their vaginas, it has been difficult for researchers to study this.