Diabetes can cause many skin conditions, such as bacterial or fungal infections, according to the American Diabetes Association. The disease may also cause localized itching or certain diabetic-related skin conditions such as acanthosis nigricans or diabetic dermopathy.
Patients who suffer from diabetes are at an increased risk for developing both bacterial and fungal infections. Common bacterial infections that affect diabetic patients include styes, boils, folliculitis and carbuncles, according to the American Diabetes Association. These patients are also fungal infections, such as yeast infections. The most common yeast infection that diabetic patients endure is due to the fungus Candida albicans, which causes itchy rashes on many parts of the body.