Razor bumps, ingrown hairs and razor burn are all common side effects of shaving, waxing and other forms of hair removal. Razor bumps and ingrown hairs occur when the removed hair grows back into the skin, causing inflammation, pain and tiny bumps in the area where the hair was removed. Ingrown hairs are a common condition that results from hair removal. It’s most prevalent in black men who shave facial hair. But ingrown hairs can affect anyone with tightly curled hair who shaves, tweezes or waxes to remove hair. Ingrown Hairs also occur when the hair is weak and too thin not having the ability to break through the surface of the skin.