Video:What Causes a Yeast Infection?
Conditions in the vagina can cause yeast to multiply and grow. Learn more about what causes a yeast infection and how yeast infections are treated.
Transcript:What Causes a Yeast Infection?
The Female Reproductive System
The female reproductive system consists of the ovaries, fallopian tubes, uterus, and vagina.Bacteria in the Vagina
The vagina is a muscular canal that leads from the outside of the body to the uterus. The warmth and moisture of this canal create a perfect environment for microorganisms to breed.The Function of Lactobacilli in the Vagina
For example, bacteria called lactobacilli, which are naturally present in the vagina, coexist with a yeast fungus called Candida albicans. Normally, the lactobacilli create an acidic environment that keeps the natural yeast population in balance.However, when conditions within the vagina change that either decrease the numbers of lactobacilli or decrease the acidity, these yeast fungi begin to multiply.
Yeast in the Vagina
The growing yeast population causes irritation in the walls of the vagina and is accompanied by mild to severe itching.In addition, a white, lumpy discharge can form that looks similar to cottage cheese and carries an unpleasant odor.
What Causes Yeast Infections?
Yeast infections can develop following a course of medications to treat other illnesses; the reason being that the medications that destroy illness-causing bacteria in the body also destroy the normal bacteria present in the vagina.Other medications, diet, pregnancy, and wearing clothing that is tight, damp or contains dyes can also alter the vaginal environment and increase the risk for yeast infections.
Treating a Yeast Infection
Fortunately, over-the-counter medications are now available to treat this condition. Persistent or frequent yeast infections need to be evaluated by a doctor or healthcare professional.Copyrighted animations provided by Blausen Medical.
