Jeannette Graf, MD

Ingrown hairs are caused by a combination of factors, including excessively dry skin, stiff, coarse curly hairs, and improper shaving technique.

During shaving, as the razor is pulled across the skin, it causes the hair to be pulled. When the stiff, coarse hair is released from under the razor, it recoils and curls inward; the presence of excess dead dry skin cells worsens the problem by blocking the hair, causing inflammation.

Keeping skin moisturized and exfoliated is important, as well as making sure that hair is softened before shaving. Shave in the same direction as hair growth rather than against hair growth. Using a razor with fewer blades (no more than a double-edge razor) is advisable.