A cyst is a sac or cavity that may be filled with pus, semi-solid material, or air. It doesn’t usually cause pain until it gets large. An abscess is a painful, red infection that’s filled with pus. A ...

Bartholin cysts are common fluid-filled lumps that form near the opening of your vagina. When infected, they can become abscesses, which can have more severe symptoms and require different treatments.

Cysts are small sacs filled with fluid, air or skin cells that can pop up just about anywhere.

The types of acne are blackheads, whiteheads, pustules, papules, nodules, and cysts. A papule is a raised lesion that can fill with pus and become a pustule. Though you can treat most types of acne ...

Boils are painful, pus-filled, and are caused by infections like Staphylococcus aureus. Cysts are painless, non-infectious growths filled with keratin or other substances. Antibiotics may treat boils ...

Cysts and boils, while similar, differ in cause and appearance. A boil is red or discolored, swollen, and contains pus, like a pimple. A cyst is under the skin and is usually painless but can resemble ...