Medically reviewed by William Truswell, MD Hair grows out of pores, small openings in the skin that secrete sweat and sebum (oil). An ingrown hair cyst occurs when dirt or oil blocks off a pore, ...

The infection develops in the air spaces of the ... Should I worry about a hard lump behind my ear? A person should contact a doctor if they develop a hard lump behind the ear.

These bumps may be soft or hard, large or small ... In rare cases, surgery may be needed to remove a tumor or treat an infection. A lump behind the ear can be caused by many things, including ...

They aren't harmful and can usually be managed at home. But if a cyst gets infected, a healthcare provider may need to drain the cyst or prescribe an antibiotic to clear up the infection.

They’re typically caused by an infection. Subareolar abscesses usually ... When mastitis turns into an abscess it becomes a hard, red lump that is painful. Subareolar abscesses are less frequent ...

A swollen earlobe can stem from a variety of reasons, such as bacterial infections, cysts, boils, an infected piercing, or underlying conditions such as cellulitis. A person can treat a swollen ...

While most vaginal cysts are painless and harmless, some types are more prone to infection and can become red, swollen, and tender if left untreated. Medical term: Cysts — or closed pockets of ...