👉 A carbuncle is a common type of hair follicle cyst, typically found on the scalp. These cysts are usually small and round in shape, with a white center surrounded by red or brownish-black skin. They often appear as a single cluster of hair follicles, which can be caused by an infection, inflammation, or hormonal changes. Carbuncles are not typically painful to touch, but they can cause discomfort when they become infected or irritated. They may also look like small