Boils often indicate a lack of proper hygiene or a compromised immune system. They can also occur due to bacterial infections, particularly when hair follicles become infected with Staphylococcus aureus bacteria.What is your body lacking when you get boils Additionally, inadequate nutrition, particularly low levels of vitamins and minerals like vitamin A, E, and zinc, can contribute to a weakened immune response, making the body more susceptible to boils.