Cysts

Many cysts are harmless and cause no symptoms, so leaving them alone is a common and reasonable choice. Some people note the size and take a dated photo to compare later.

The lump is small, painless, has looked the same for a long time, and a clinician has confirmed it looks like a typical cyst.

The lump is new, changing, hard, or in an unusual place. Those lumps need to be examined, not just watched.

Growth, new redness, pain, drainage, or a change in color or texture.

There is no set deadline. Check it now and then, and sooner if anything changes.

• How sure are you that this is a cyst and not something else?
• Is it likely to become inflamed, given where it is?

Leaving the cyst untouched. Squeezing can break the sac under the skin and push its contents into nearby tissue, which may cause inflammation, infection, and scarring. Even if some material comes out, the sac usually remains and can fill again.

This applies to nearly everyone with a cyst, including when it looks like it is ready to pop.

Not applicable. If a cyst bothers you, a clinician can discuss safer ways to deal with it.

Redness, warmth, pain, or swelling after any picking or accidental rupture.

Ongoing. This is a habit to keep for as long as the cyst is there.

• The cyst opened on its own. What should I do now?
• Is there a safe way to ease the urge to pick at it?

Placing a warm, moist cloth over the area. MedlinePlus lists this as home care for an inflamed epidermoid cyst, to help it drain and heal. Good-quality studies of this step are limited, so it is mostly based on clinical practice.

A cyst is tender or mildly inflamed and there are no signs of a spreading infection.

The skin is spreading red, very painful, or you have a fever. Those need prompt evaluation. Use care with hot items, especially if skin feels numb.

Burns from a cloth that is too hot, or worsening pain, redness, or swelling.

Many people judge it within several days. If it is not settling, a clinician can reassess.

• Is a warm compress reasonable for my cyst?
• What signs would mean I should be seen sooner?

Common non-prescription pain relievers may ease tenderness from an inflamed cyst, and mild soap and a clean, loose covering can protect irritated skin. These do not remove the cyst itself.

A cyst is sore but there are no signs of spreading infection, and the person can safely use these products.

The person has stomach, kidney, liver, or bleeding problems, is pregnant, or takes blood thinners. They should check with a clinician or pharmacist first. Creams do not reach the sac, so they are unlikely to clear a cyst.

Pain that is getting worse, new drainage, or skin irritation from adhesives or products.

Relief, if it comes, is often within days. Lasting pain deserves a visit.

• Which pain relievers are safe for me?
• Would any cream or ointment help here, or not?

A clinician injects a steroid medicine into an inflamed cyst to calm swelling and tenderness. It may reduce inflammation and delay surgery, but it does not remove the sac.

A cyst is red and swollen from inflammation but does not seem to be a true abscess, or surgery is planned for later.

An infection with pus is suspected, or the person has certain allergies or conditions the clinician wants to avoid. Steroid injections can thin or lighten skin at the site, which may be more noticeable on brown and Black skin.

Skin thinning, lighter skin, pain at the site, and the cyst returning later.

Clinicians often judge the effect over days to a couple of weeks.

• Is my cyst inflamed or infected, and does that change the plan?
• What are the skin-lightening risks for my skin tone?
• Will I still need removal later?

A clinician numbs the area, makes a small opening, and drains the contents. It can relieve pressure and pain quickly. It is usually a temporary fix because the sac is left behind and the cyst can return.

A cyst is painful, swollen, and filled with pus, such as an infected cyst or abscess.

A cyst is calm and not inflamed. In that case, complete removal is often discussed instead. Bleeding disorders or blood thinners need review first.

Pain after the numbing wears off, bleeding, worsening redness, fever, and recurrence of the lump.

Pain and pressure often ease within days. Whether it returns may take weeks to months to show.

• Will drainage be enough, or will the cyst likely come back?
• Do I need a follow-up to remove the sac?

A clinician removes the whole cyst, including its wall (the sac). Removing the sac intact is the approach most associated with preventing the cyst from coming back. It is usually done under local numbing, and techniques vary.

A cyst keeps returning, is bothersome, is in a spot that rubs, repeatedly becomes inflamed, or the diagnosis is uncertain. Many clinicians prefer to wait until a cyst has calmed down.

Cysts that are small and not bothersome may not need it. Bleeding disorders, blood thinners, and a history of thick or raised scars (keloids), which is more common in some brown and Black skin, should be discussed.

A scar, bleeding, infection, numbness nearby, and, less often, the cyst returning if part of the wall is left.

Healing often takes a couple of weeks. A final scar can take months to settle.

• What kind of removal technique do you use, and what scar should I expect?
• Is it better to wait until the cyst calms down?
• Will the tissue be sent to a lab?

A clinician examines the lump and may use ultrasound or send removed tissue to a lab. This helps tell cysts apart from lipomas, acne or HS lesions, and, rarely, skin cancer.

A lump is new after age 50, is growing, hard, fixed, bleeding, or in an unusual place, or the diagnosis is unclear.

A lump that is clearly a typical, stable cyst may not need extra testing.

Waiting a long time for results, or a lump that keeps changing while you wait.

Exam findings are often immediate. Lab results often take days to a couple of weeks.

• Do you think this is a cyst, and how can we be sure?
• Does this lump need testing or imaging?

Antibiotic medicine by mouth may be used if a cyst is truly infected, for example with spreading redness, warmth, and fever. An inflamed cyst is often not infected, and antibiotics alone do not remove the sac.

There are signs of infection that spread beyond the cyst, or the person has other health conditions that raise infection risk.

The cyst is only red, tender, or swollen without signs of infection. Allergies to antibiotics, pregnancy, and other medicines need review.

Stomach upset, diarrhea, rash or allergic reaction, and no improvement.

Improvement is often expected within a few days. If not, the plan may need to change.

• Is my cyst infected, or just inflamed?
• If I take an antibiotic, does the cyst still need to be drained or removed?