Boils in the private area, also known as furuncles, are typically caused by bacterial infections. The most common bacteria responsible for causing boils is Staphylococcus aureus. Other factors that can contribute to the development of boils in this area include poor hygiene, friction from clothing, compromised immune system, and conditions like diabetes. It’s important to keep the area clean, avoid squeezing or popping the boil, and seek medical attention if the boils are recurrent or accompanied by severe symptoms.