1 Your health care provider should investigate diarrhea that lasts more than three days.  Constipation. Constipation is defined as having less than three bowel movements in a week, and it is one of the most common gastrointestinal complaints. Having constipation, however, does not mean you have colon cancer.
Causes. The fungus candida causes a vaginal yeast infection. Your vagina naturally contains a balanced mix of yeast, including candida, and bacteria. Lactobacillus bacteria produce acid, which prevents yeast overgrowth. That balance can be disrupted and lead to a yeast infection.auses. The fungus candida causes a vaginal yeast infection. Your vagina naturally contains a balanced mix of yeast, including candida, and bacteria. Lactobacillus bacteria produce acid, which prevents yeast overgrowth. That balance can be disrupted and lead to a yeast infection.
Most cases of yeast infection in the United States are caused by Candida albicans. Yeast is the term for a fungus that exists as a single-celled organism rather than as hyphae. There are about 500 species of yeasts in 60 genera, or about 1000 species of yeasts or yeast-like organisms.