What Is a Pilonidal Cyst and Why Won't It Go Away on Its Own?
September 10, 2026
During World War II, more than 80,000 American soldiers ended up in the hospital with a painful skin condition near their tailbones, all from spending too many hours jolting across rough terrain in military Jeeps. Doctors named it "Jeep disease." Today we call it pilonidal disease, and while the cause has shifted from Jeep seats to office chairs and long-haul truck cabs, the condition hasn't changed much.
More than 70,000 Americans develop a pilonidal cyst every year, and most of them have never heard the term until one shows up and makes sitting down feel unbearable.
Pilonidal Disease at a Glance
- A pilonidal cyst is a skin infection that forms near the tailbone in the crease of the buttocks, usually triggered by ingrown hairs
- The condition affects more than 70,000 Americans each year and is three to four times more common in young men than in women
- Pilonidal cyst symptoms include pain that worsens when sitting, swelling, redness, and drainage of fluid or pus
- Pilonidal disease rarely resolves on its own and typically becomes more complex the longer treatment is delayed
- A colorectal surgeon can evaluate and treat a pilonidal cyst, often with a straightforward procedure done right in the office
What Is Pilonidal Disease?
The word "pilonidal" means "nest of hair," which accurately describes the condition. A pilonidal cyst forms in the gluteal cleft (the crease at the top of the buttocks near the tailbone) when hair gets forced under the skin through friction and pressure. The body treats that hair like a foreign object, launching an immune response and forming a cyst around it.
Once infected, the cyst turns into a pilonidal abscess, filling with pus and pressure that won't clear without medical attention. Some people also develop a pilonidal sinus, a small tunnel in the skin that creates a chronic drainage wound, going quiet between flare-ups before returning worse than before.
Will a pilonidal cyst go away on its own?
Rarely, and almost never for good. Small cysts occasionally drain temporarily, which gives people a false sense that the problem is resolved. But the sinus tract stays under the skin, and the next infection is usually worse. Each flare-up leaves more scarring and narrows your treatment options. The sooner a colorectal surgeon evaluates the cyst, the more straightforward the fix.
Who Gets Pilonidal Cysts?
Men develop pilonidal cysts three to four times more often than women. The peak age range runs from puberty through about 40, with most diagnoses landing between 20 and 35.
People who sit for extended periods face a significantly higher risk, since sustained pressure and friction push hairs deeper under the skin. Truck drivers, office workers, remote workers, and students are all in this category. Higher body weight, thick or coarse body hair, a family history of pilonidal cysts, and tight clothing also raise the odds.
From the long-haul drivers on I-65 to Birmingham's growing desk-worker population, Alabama has plenty of people in these risk categories. If your routine keeps you seated for most of the day, this is one colorectal condition worth knowing by name.
What Pilonidal Cyst Symptoms Feel Like
Pilonidal cyst symptoms often start subtly, and many people dismiss early signs as muscle soreness or a minor skin irritation. Here's what to pay attention to:
- Pain or tenderness near the tailbone, especially when sitting or standing up
- Swelling, redness, or a firm lump in the crease of the buttocks
- Drainage of fluid, pus, or blood from a small opening in the skin, sometimes with an odor
- A small pit or dimple visible in the skin near the tailbone
- Fever, nausea, or unusual fatigue when the cyst becomes infected
Could this just be a pimple or a boil?
It's a reasonable assumption, since the early stages look similar. A pilonidal cyst specifically develops in the gluteal cleft near the tailbone rather than appearing in random skin locations. The presence of a small pit or sinus opening in that specific area is the distinguishing detail. If you're not certain, a brief exam from a colorectal specialist removes the guesswork quickly.
Why Pilonidal Disease Gets Worse Without Treatment
Most people who ignore a pilonidal cyst hope the symptoms will resolve on their own. Sometimes they do quiet down for a few weeks, which reinforces the decision to wait. But the sinus tract itself doesn't disappear, and the next infection typically arrives harder than the first.
What starts as mild discomfort can escalate fast. Once infected, a cyst fills with pus and makes sitting nearly impossible. If the abscess drains on its own or receives only antibiotics without removing the sinus, it comes back. Each infection leaves more scarring and narrows your treatment options. Over time, untreated pilonidal disease can develop into multiple interconnected sinus tracts and chronic fistulas that require significantly more surgery to resolve.
Rare cases have connected long-term, untreated pilonidal sinuses to squamous cell carcinoma. That outcome is uncommon, but it's one more reason not to treat this as a waiting game. The earlier the intervention, the simpler it tends to be.
What Pilonidal Cyst Treatment Actually Looks Like
Pilonidal cyst treatment depends on how far the condition has progressed, and most cases caught early are very manageable.
For an acute infected cyst or abscess, the first step is incision and drainage: a small opening made in the cyst under local anesthesia to remove infected material and relieve pressure. Most patients feel significant relief the same day, and a surgeon handles it right in the office without a hospital stay.
For recurring or chronic pilonidal disease, the goal is to remove the sinus tract entirely. Options include surgical excision, a cleft lift procedure that flattens the gluteal cleft and closes the wound off the midline to reduce recurrence, or minimally invasive pit-picking for earlier-stage disease.
A colorectal surgeon is the right specialist for pilonidal disease, particularly for recurring or complex cases. Their training in perianal and gluteal anatomy covers both the surgical technique and the anatomical factors that drive recurrence. A primary care doctor can drain an acute cyst, but for anything that keeps coming back, specialist care produces better long-term outcomes.
Frequently Asked Questions About Pilonidal Cysts
What kind of doctor should I see for a pilonidal cyst?
A board-certified colorectal surgeon is the best choice, especially for recurring cases. They train specifically in perianal anatomy and can assess how far the disease has progressed and which treatment fits. A primary care doctor can handle a first evaluation and simple drainage, but beyond a single uncomplicated episode, a specialist delivers better outcomes.
Do I definitely need surgery for a pilonidal cyst?
Not always. An early cyst may respond to incision and drainage without full excision. The case for surgical removal strengthens with each recurrence, since returning disease usually means a sinus tract that antibiotics and drainage alone won't resolve. A colorectal surgeon can recommend the least invasive option that actually addresses the root cause.
What does recovery look like?
It depends on the procedure. Incision and drainage typically allow a return to normal activities within a few days. Excision or cleft lift surgery requires two to six weeks depending on technique and disease extent. Your surgeon will give you specific guidance on activity, wound care, and follow-up.
You Don't Have to Keep Putting This Off
Pilonidal disease isn't rare; it isn't something to be embarrassed about, and it almost never gets better on its own. If you've dealt with more than one flare-up, or if you're currently managing pain, swelling, or drainage near your tailbone, the next step is simple: get it evaluated by a colorectal surgeon who treats this regularly.
Schedule Your Evaluation in Birmingham
At Alabama Colon & Rectal Institute, our board-certified surgeons provide anorectal and colorectal care in Birmingham with the discretion and experience this condition calls for. You won't be the first person to walk through our door with pilonidal disease.
Schedule an appointment with our Birmingham team at acripc.com/contact or call us at (205) 458-5000. We're open Monday through Thursday, 8:30 a.m. to 5:00 p.m.