Whiteheads are small, raised bumps on the skin that are caused by clogged pores. They are often mistaken for blackheads, but whiteheads do not have an opening at the top. This means that the sebum and dead skin cells that are trapped inside the pore cannot escape, and the bump becomes inflamed.
Whiteheads are a common skin problem, and they can occur anywhere on the body. However, they are most commonly found on the face, neck, chest, and back. Whiteheads are not typically painful, but they can be unsightly and embarrassing.