Most skin cysts are harmless and don’t need emergency treatment, but they won’t go away on their own either. What you should do depends on whether the cyst is causing symptoms, showing signs of infection, or simply bothering you cosmetically. The single most important rule: don’t try to pop or squeeze it yourself.
How to Identify a Skin Cyst
Skin cysts are round lumps that sit just beneath the surface. They grow slowly and range in size from smaller than a pea to several centimeters across. Many contain fluid or a thick, cheese-like material, and some have a small dark spot in the center. The two most common types are epidermoid cysts, which develop in the top layer of skin and can appear almost anywhere on the body, and pilar cysts, which form in hair follicles and show up most often on the scalp.
Ganglion cysts are a different category. These firm, rubbery lumps develop near joints or tendons, most commonly on the wrist or hand. They’re filled with a jelly-like fluid rather than the material found in skin cysts, and they have their own set of treatment options.
Why You Should Never Pop a Cyst
It’s tempting, but squeezing or puncturing a cyst at home is one of the worst things you can do. Unlike a pimple, a cyst has a sac wall underneath the skin. Squeezing can rupture that wall internally, spreading its contents into surrounding tissue and triggering inflammation or infection. Even if you manage to drain some fluid, the sac remains intact, and the cyst will almost certainly refill and come back. You also risk introducing bacteria through the skin, turning a painless lump into a red, swollen, painful problem that now requires antibiotics.
What You Can Do at Home
If your cyst is small, painless, and not infected, a warm compress is the safest home treatment. Soak a clean washcloth in warm water (no hotter than comfortable bath temperature) and hold it against the cyst for 20 to 30 minutes, three to four times a day. You can also place a hot water bottle or heating pad over a damp towel. This encourages drainage toward the surface and can reduce discomfort if the area feels tender.
Keep the area clean and avoid tight clothing or accessories that press on the cyst. If it’s in a spot that gets irritated by friction, a simple bandage can help protect it. Warm compresses won’t make the cyst disappear permanently since the sac wall is still there, but they can calm inflammation and help you manage while you decide on next steps.
Signs That Need Medical Attention
A cyst that was sitting quietly for months can change. See a doctor if you notice any of the following:
- Redness and warmth spreading around the cyst, which suggests infection
- Rapid growth over days or weeks
- Increasing pain, especially if it throbs or hurts without being touched
- Drainage of pus or foul-smelling fluid
- Fever, which can signal that infection is spreading beyond the cyst itself
An infected cyst typically needs to be drained by a healthcare provider in a sterile environment, sometimes with a course of antibiotics. This is a straightforward office procedure, not something that requires a hospital visit in most cases.
Medical Treatment Options for Skin Cysts
If a cyst bothers you because of its size, location, or appearance, a doctor can remove it even when it’s not infected. The standard approach is surgical excision, a minor procedure done under local anesthesia. The doctor removes the entire cyst, including the sac wall, which is the key to preventing it from coming back. You’ll typically have stitches that come out at a follow-up visit seven to 10 days later.
Recovery is relatively quick. You’ll want to keep the area clean and dry, and avoid heavy exercise or contact sports until your provider gives the all-clear. Most people return to normal daily activities within a few days, though the timeline depends on the cyst’s size and location. A cyst removed from your back, for example, may limit certain movements longer than one removed from your arm.
For inflamed but non-infected cysts, some providers offer a steroid injection to reduce swelling and discomfort. This can shrink the cyst temporarily, but it doesn’t remove the sac, so recurrence is common.
Ganglion Cysts: A Different Approach
Ganglion cysts near joints and tendons are managed differently from skin cysts. Many ganglion cysts are painless and can simply be watched over time, as some resolve on their own. If a ganglion cyst causes pain or limits movement, the first-line treatment is aspiration: a doctor uses a needle to draw out the jelly-like fluid. A single aspiration has a cure rate of about 40%, but that jumps to roughly 85% when at least three aspirations are performed over time.
Certain ganglion cysts on the wrist sit close to the radial artery, making aspiration too risky in that location. For those, or for ganglion cysts that keep refilling after aspiration, surgical removal is the more definitive option. Steroid injections have been studied for ganglion cysts on the wrist, but the recurrence rate is high, around 73%, making them a poor long-term solution.
Will a Cyst Come Back After Treatment?
Recurrence depends entirely on whether the sac wall is fully removed. Draining a cyst, whether at home or in a clinic, leaves that wall behind. The cyst refills over weeks or months in many cases. Complete surgical excision has the lowest recurrence rate because it removes the structure that produces the fluid in the first place. Even with surgery, there’s a small chance of recurrence if any part of the wall is left behind, particularly with cysts in tricky locations or ones that have ruptured and scarred internally from prior squeezing attempts.
If you’ve had a cyst removed and notice a new lump forming in the same spot, it’s worth having it checked. A recurring lump is usually just the cyst returning, but your provider may want to confirm that’s all it is.