Over 70 percent of women get at least one yeast infection during the course of their lives, and many women will experience repeated episodes. A woman who has a yeast infection basically has an abnormal build-up of yeast in her vagina, which produces a white discharge. Several things can cause an imbalance great enough to produce a yeast infection.
Antibotics
A woman's body naturally protects itself from a yeast infection by maintaining a balance of bacteria and yeast. The bacteria acts to kill the yeast and keep the vagina healthy. If a woman needs an antibiotic to fight an illness, such as a sinus infection or urinary tract infection, the antibiotic has the potential to alter the body's balance between bacteria and yeast.
Clothing
Moisture that gets trapped in the vaginal area can also help yeast grow and cause an infection. Wearing underwear that is synthetic, tight, or dirty can keep moisture in the vagina, which may increase fungal growth and lead to infection. Wearing unbleached, natural cotton underwear can help prevent infections. Washing clothing with natural detergents and avoiding perfumed soap also helps.
Immune Issues and Injury
Since the bacteria that help fight yeast are part of the immune system, many women who have immune system issues are prone to yeast infections. Women undergoing chemotherapy are prone to yeast infections. Chemotherapy suppresses your immune system by lowering your white blood count, so the body may not be able to fight the growth of yeast.
Also, women who have some sort of vaginal injury can be prone to getting a yeast infection. Many times a vaginal injury can come from multiple instances of sexual intercourse over a short period of time.
Sex
Men can have yeast infections as well, and it is possible to pass an infection back and forth between partners. If one partner has a yeast infection, the couple should abstain from sex or use condoms until the infection is completely resolved.
