Why are women with diabetes pre-disposed to developing recurrent yeast infections?

Multifactorial. Yes high sugars suppress your immune system. When your immune system is suppressed it is easier to develop infection. But yeast also feed off high sugar and use it for fuel. The extra sugar allows the yeast to grow faster.
Yeast loves sugar. In women with uncontrolled diabetes, there is often a disproportionate amount of sugar secreted in the urine. In cases where there is some urine leakage or urine remaining after wiping, some sugar is left over. This provides an ideal food source for the yeast to take advantage of and grow.
Impaired immunity. When your sugar is elevated, your white blood cells do not function normally. Your white cells are what keep these normal skin and vaginal flora in check. If the white cells don't function well, these flora take over and cause these infections. Keeping your diabetes under control is key to avoiding this issue.
High sugars. Elevated glucose levels are in all the body tissues, including the vaginal cells and fluids. Yeast grows very quickly in that high sugar environment.
Immun system. Diabetes is a relatively immune suppressing condition, in that high blood sugar levels results in glucose deposition upon the white blood cells. This affects WBC function and can increase the risk for infections.

Related Questions

Is vaginal yeast infection a sign of diabetes? 27-year-old married female.

Can be but unlikely. Vaginal yeast infections are very common in women and mostly have nothing to do with diabetes. If you have diabetes, you're more likely to get them because sugar in the urine feeds yeast cells normally present on the skin anyway which can lead to overgrowth. If you're worried about having diabetes, please see your doctor. A hba1c can be checked. If you're spilling sugar in urine, it will be high. Read more...
Not necessarily. As a diabetic one is more susceptible to any infection. One does not have to be diabetic to have a yeast infection. Read more...

What can recurring yeast infections have to do with diabetes?

More common. Much more common in women (and men) who have diabetes, particularly if their sugars are not kept in good control. Glucose control can reduce incidence back to near normal. Read more...

Are my reoccurring yeast infections a possible sign of diabetes?

Possibly. Recurrent skin infections are one sign of diabetes, but they can have other causes as well. You should be seen by physician and evaluated. Read more...

Could my reoccurring yeast infections truly be a sign of diabetes?

I don't know. Yeast infections are due to a fungus called candida which is normally found in the vagina. However, if there is a lack of healthy vaginal bacteria it can lead to overgrowth of yeast. Some causes of overgrowth: antibiotics, ^ estrogen (pregnancy or some birth control pills), malfunctioning immune system, diabetes mellitus as well as friction against vaginal tissues (intercourse) and douching. Read more...

I have chronic yeast infection possible sign of diabetes, what do you suggest?

Possibly have DM. Get blood glucose monitor over-the-counter in pharmacy. Check sugar after overnight fast- if126 diabetic. Or check 2 hours after eating if 200 , diabetic. Read more...
Not always related. As a diabetic one is more susceptible to any infection. One does not have to be a diabetic to develop a yeast infection. Read more...

Can a yeast infection from diabetes be transmitted through sexual activity?

Only if "dining out" Vaginal yeast infections rarely infect male partners through intercourse, however, "dining out"(oral sex) can produce thrush, an oral yeast infection in susceptible partners. Read more...