Comedones are a type of acne that occurs when hair follicles in the skin become clogged by oil, dead skin cells, and debris. This causes small bumps commonly known as blackheads (open comedones) or ...

Anyone who has watched a pimple popping video online may be familiar with the word comedo. Dermatologists use comedo to describe the most common types of acne. A comedo can be either a whitehead or a ...