Ingrown hairs occur when hair curls back or grows
sideways into the skin instead of rising up from it.
This often causes red, itchy bumps that resemble pimples.
In some cases, ingrown hairs can become infected,
resulting in painful pus-filled lesions.
Causes
Shaving, waxing, or plucking hair too closely
Wearing tight clothing that causes friction
Naturally curly or coarse hair
Symptoms