Razor burn is a common skin irritation that occurs after shaving. It is characterized by small, red bumps that can be itchy and painful. Razor burn is caused by the friction of the razor blade against the skin, which can irritate the hair follicles and cause inflammation.
Razor burn can be a nuisance, but it can also be a sign of a more serious underlying condition, such as folliculitis or pseudofolliculitis barbae. If you experience razor burn frequently, it is important to see a dermatologist to rule out any underlying medical conditions.