Boils are skin infections that affect the hair follicle and are often caused by the bacteria Staphylococcus aureus. They appear as a reddened, hot and hardened nodule with pus present. It is usually small, but its size varies according to the depth of the infection.
The difference between a furuncle and folliculitis is that, in addition to the follicle, the furuncle affects the subcutaneous tissue in the vicinity of the follicle.
It is common for the bacteria to manifest itself in damp, frictional hair regions, in addition to fatty parts of the skin, which facilitates the blocking of hair follicles.
The boil is usually benign and has no problems, disappearing over the course of a few days, but it can cause complications, especially when its handling is inadequate.