Candidiasis is a fungal infection caused by an overgrowth of the Candida species, most commonly Candida albicans. This fungus is normally present in small amounts in the body, particularly in the mouth, gut, and on the skin. However, certain factors like a weakened immune system, antibiotics, or high sugar diets can lead to an imbalance, resulting in an infection. Symptoms can vary depending on the affected area, including itching, redness, and discomfort. There are different types of candidiasis, such as oral thrush, which affects the mouth, and vaginal yeast infections, which are common among women. Treatment typically involves antifungal medications, and maintaining a healthy lifestyle can help prevent future infections.