Ingrown hair cysts commonly occur in areas of the body that people shave, such as the armpits. Razor bumps from shaving, also known as pseudofolliculitis barbae, are a type of ingrown hair cyst. They often go away on their own, but can sometimes become infected and require treatment.

This article explains what an ingrown hair cyst looks like and why one might form. It explains some home remedies as well as medical treatments, and offers ideas on how to prevent an ingrown hair cyst from forming.

Ingrown Hair Cyst Symptoms

Ingrown hair cysts are common and can occur anywhere on the body where you have hair. But they often develop on the areas where you shave, which can include:

Face Armpits Pubic area Legs

A cyst from an ingrown hair may be red, white, or yellow. If the bump grows larger or becomes redder, oozes, or is painful, it may be infected. An infection requires medical treatment.

When to See a Healthcare Provider

Ingrown hair cysts usually go away on their own without issue. You should see a healthcare provider for an ingrown hair cyst or razor bumps if you notice signs of infection, such as:

Swelling Pus Redness Itching Pain Odor Fever

What Causes an Ingrown Hair Cyst?

Ingrown hair cysts tend to develop where hair is coarse or curly, like in the pubic region. If you have coarse or curly hair, you may be more likely to develop ingrown hair cysts. They can also develop where there are dead skin cells blocking hair follicles.

Removing hair is one of the most common causes of ingrown hair cysts, whether from shaving, waxing, or tweezing. Any of these methods can irritate your skin, causing it to become inflamed and swollen.

When a new hair forms, if the hair follicle is closed up, the hair can’t grow out of the follicle and through the skin. Instead, it grows inward or sideways.

Treating an Ingrown Hair Cyst

Ingrown hair cysts will often go away on their own in a week or so. If you can, stop shaving the area while it heals, and keep the area clean and moisturized.

You can also help the process along with a simply home remedy. Apply a warm, clean washcloth as a compress to soften the skin, which may help move the hair to the surface.

This is not always successful, however. If the cyst shows signs of infection or simply won’t go away, see a healthcare provider.

A healthcare provider can treat cysts with antibiotics or other methods, so that the infection doesn’t spread or scar.

Prevention

If you regularly develop ingrown hair cysts, try these prevention measures:

Wash your skin with warm water and a gentle cleanser before shaving. Use a gentle exfoliating agent before shaving to remove dead skin cells. Use a single blade or electric razor, and try not to keep going over the same areas. Keep shaving implements clean. Don’t shave too closely. Always shave in the direction the hair grows and don’t pull the skin. Shave less frequently, if possible. Moisturize after shaving.

Some people experience chronic ingrown hair problems and may need to avoid shaving for hair removal altogether.

You can also consider permanent hair removal methods like laser hair removal, electrolysis, or hair removal creams.

Summary

Ingrown hair cysts occur when a hair follicle gets blocked and the hair grows into your skin instead of outward. You should never pop an ingrown hair cyst because it can cause infection and scarring. They may go away on their own, but if they hurt, become red, or ooze pus, see a healthcare provider.

To reduce the likelihood of ingrown hair cysts, keep your skin clean, gently exfoliated and moisturized, and consider shaving less frequently. Always shave in the direction the hair grows.