It may or may not be accompanied by an infection of the hair follicle (folliculitis) or "razor bumps" (pseudofolliculitis barbae), which vary in size.

[2] Symptoms include rash, itching skin, and hair that remains in spite of shaving.

The site of the ingrown hair forms a reddish, raised bump, similar in appearance to a pimple.

In addition, the application of too much force with a razor can contribute to hair that is cut shorter than the surrounding dermis.

[3] The many different treatments are available for ingrown hairs: Other treatments include putting a warm washcloth over the ingrown hair, shaving in a different direction, exfoliating with facial scrubs, brushes, sponges, towels,[1] salves, or creams containing acids, and ibuprofen or other nonsteroidal anti-inflammatory drugs.