Shaving bumps, also known as razor bumps or pseudofolliculitis barbae, are a common skin condition that occurs when shaved hair curls back and re-enters the skin. This can lead to inflammation, irritation, and the formation of small, red, or dark bumps. Shaving bumps are most commonly found on the face, neck, and underarms, but they can occur anywhere on the body where hair is shaved.
There are a number of factors that can contribute to the development of shaving bumps, including the thickness and texture of hair, the frequency of shaving, and the type of razor used. People with curly or coarse hair are more likely to experience shaving bumps, as their hair is more likely to curl back and re-enter the skin. Shaving too frequently can also irritate the skin and increase the risk of developing bumps. Finally, using a dull or dirty razor can also contribute to shaving bumps, as it can cause the hair to be cut unevenly and increase the chances of it curling back into the skin.