A boil can form from bacterial infections or the inflammation of one or more hair follicles. Recurring ones are usually painful and can also be distressing. In the beginning, it's generally tender and pink, and localized to one area, but not very noticeable. Later, it turns into a firm, inflamed lump filled with pus and white blood cells. They can get even more painful until they burst and pus comes out of them. While some boils can take a couple of weeks to heal, which can be irritating and painful, some may go away after a few days.
Ingrown Hair
When hair curls up and goes into the skin with its tip, it becomes an ingrown hair. It's possible to see the tiny ingrown hair just below the raised area. People with extremely curly hair are prone to developing ingrown hairs. Ingrown hairs can sometimes develop in the neck area and the pubic area. According to Aurora Health Care, an infected hair follicle is where boils start most often. Yeasts, bacteria, or fungi infections can complicate an ingrown hair, making it worse. Inflammation of the skin, resulting in the formation of pus, itchiness, and redness are the most common symptoms of an ingrown hair.
Staphylococcus
Staphylococcus or staph is bacteria known for causing boils. Many staph infections turn into abscesses, a collection of pus in a cavity, and can become severe in a short period of time. According to eMedicineHealth.com, this germ can be located on healthy skin and enter the body through small openings of the skin and can also move down into the hair follicle. Many people are usually not aware that they have staph infection because boils or any other symptoms are not always visible. It is encouraged to get tested for Staph infection when boils show up on the skin.
Blocked Sweat Glands
Hidradenitis , which is also known as hidradenitis suppurativa, is characterized by inflammation of the apocrine sweat glands located in the anus, genital area, under breasts, and under armpits. There is no known cause for hidradenitis, although it may be caused by clogging of the apocrine ducts, an endocrine disorder of the gland or an infection caused by one of several bacteria, such as staphylococcus. According to HealthScout.com, it is virtually harmless as it lives on the human skin. But the bacteria may cause infection on the skin's surface if it were to become trapped, blocking the sweat gland within the skin. This creates skin blisters, also known as pustules, boils, abscesses or carbuncles, which are clusters of boils.
