An ingrown hair occurs when a strand of hair grows back into the skin, usually after shaving, waxing or tweezing.
Symptoms of ingrown hair, according to the Cleveland Clinic, include:
- Skin irritation
- Small bumps with hairs in the middle on the face and neck
In a condition called pseudofolliculitis barbae (razor bumps), hair that has re-entered the skin triggers small bumps to appear on the face and neck.