Many cysts do go away on their own, but whether yours will depends almost entirely on what type of cyst it is. Functional ovarian cysts typically disappear within one to three months. Ganglion cysts resolve without treatment roughly 40 to 58% of the time. Skin cysts like epidermoid (sometimes called sebaceous) cysts rarely disappear completely on their own, though inflammation from them usually calms down within about four weeks. The short answer: some types reliably shrink and vanish, others stick around indefinitely, and a few will keep coming back even after treatment.
Ovarian Cysts: Most Resolve Quickly
The most common ovarian cysts are functional cysts, which form as a normal part of the menstrual cycle. These typically resolve within one to three menstrual cycles without any intervention. Your doctor may recommend a follow-up ultrasound after a couple of months just to confirm the cyst has shrunk or disappeared. In many cases, you won’t even know a functional cyst was there unless it was found incidentally during imaging for something else.
Not all ovarian cysts are functional, though. Endometriomas, dermoid cysts, and cystadenomas don’t tend to resolve on their own and often need monitoring or surgical removal. If an ovarian cyst causes sudden, severe pelvic pain, that can signal rupture or ovarian torsion (twisting), both of which need immediate medical attention.
Ganglion Cysts: Good Odds, But Slow
Ganglion cysts are fluid-filled lumps that most commonly appear on the wrist or hand. Research tracking patients over several years consistently shows that 40 to 58% of ganglion cysts resolve on their own. One study followed patients for up to 10 years and found a 48% spontaneous resolution rate; another tracking patients for about five years found 53% disappeared without treatment.
The catch is that “resolving on their own” can take months to years, not weeks. If the cyst isn’t causing pain or interfering with movement, watching and waiting is a reasonable approach. Draining the fluid with a needle (aspiration) offers faster relief but has a high recurrence rate of 60 to 95%. Surgical removal brings recurrence down to roughly 20%, so even with intervention, ganglion cysts can come back.
Skin Cysts: Inflammation Fades, But the Cyst Stays
Epidermoid cysts (the bumps under the skin that people commonly call sebaceous cysts) are among the most stubborn. An inflamed epidermoid cyst will often calm down on its own within about four weeks, becoming smaller and less tender. But the cyst wall remains beneath the skin, which means the lump can flare up again later. True, permanent resolution without removal is uncommon.
Applying a warm, moist cloth to the area can help an inflamed cyst drain and heal faster. This won’t eliminate the cyst wall, but it can reduce swelling and discomfort in the short term. If you want the cyst gone for good, surgical excision of the entire cyst wall is the standard approach. Incomplete removal is the main reason these cysts recur.
Be alert if a skin cyst grows rapidly, becomes larger than about 5 centimeters (roughly 2 inches), or shows signs of infection: increasing pain, redness, swelling, warmth, or foul-smelling drainage. An infected cyst needs medical treatment rather than home care.
Chalazions: Patience Usually Pays Off
A chalazion is a small, firm bump on the eyelid caused by a blocked oil gland. Most chalazions respond well to conservative care, particularly warm compresses applied for 10 to 15 minutes several times a day. With this approach, the average resolution time is about four to four and a half weeks, though some take up to six or seven weeks. Smaller chalazions and those caught early tend to clear faster. Surgical drainage is an option for persistent or large chalazions, but most people won’t need it.
Baker’s Cysts: Treat the Knee, Not Just the Cyst
A Baker’s cyst is a fluid-filled swelling behind the knee, and it almost always develops because of an underlying knee problem like arthritis, a meniscus tear, or cartilage damage. The cyst itself is a symptom. Removing the cyst surgically without addressing the knee issue leads to disappointing results: one study found a 63% recurrence rate after excision alone, with a third of patients also experiencing wound complications.
When the underlying joint problem is treated, the results improve dramatically. In one series, 29 out of 30 Baker’s cysts decreased in size or disappeared after the intra-articular issue was addressed. So while a Baker’s cyst can shrink on its own if the knee condition improves, the most reliable path to resolution is treating whatever is going on inside the joint.
Pilonidal Cysts: Manageable but Prone to Recurrence
Pilonidal cysts form near the tailbone, often where hair gets trapped under the skin. An asymptomatic pilonidal cyst doesn’t necessarily require treatment and may resolve on its own. Keeping the area clean and free of hair by shaving or using a hair removal product every two to three weeks can help prevent flare-ups. However, once a pilonidal cyst becomes infected and forms an abscess, it typically needs drainage and sometimes surgical intervention. These cysts are notorious for recurring, particularly in people with coarse or abundant body hair in the area.
How to Tell If a Cyst Needs Attention
Most cysts are painless, slow-growing, and harmless. The characteristics that shift a cyst from “watch and wait” to “get it checked” are fairly consistent regardless of type:
- Rapid growth over days to weeks, rather than months
- Increasing pain or tenderness that isn’t improving
- Redness, warmth, or swelling in the surrounding skin
- Drainage, especially if it’s cloudy, discolored, or foul-smelling
- Fever, which can indicate the infection is spreading
A cyst that’s been stable for months or years and suddenly changes in any of these ways warrants a medical evaluation. Infected cysts can progress to more serious complications if left untreated.
Why Some Cysts Keep Coming Back
The reason certain cysts recur comes down to anatomy. Most cysts are enclosed in a sac or wall. If that wall isn’t completely removed, it can refill with fluid and re-form. This is why draining a cyst with a needle offers only temporary relief for many types. For ganglion cysts, aspiration has a recurrence rate as high as 95%, while complete open surgical excision brings that down to around 20%. The same principle applies to epidermoid cysts: squeeze out the contents and the lump may shrink temporarily, but leave the wall behind and it will likely return.
If you’ve had a cyst drained and it comes back, that’s not unusual. It doesn’t mean something is wrong. It means the cyst wall is still intact and producing fluid. Complete excision is the most reliable long-term solution for cysts that keep recurring, though even surgery can’t guarantee they won’t return in every case.