Pilonidal sinus
A surprisingly common condition that most people have never heard of until it happens to them. Everything here is private, anonymous, and built to help you make sense of what you are dealing with.
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The pages most people need first. Everything else is further down.
Pilonidal sinus: patterns and care
Learn what a pilonidal sinus is, what people commonly experience, what tends to help, and when to seek medical care.
Read guide →Pilonidal cyst vs sinus: the difference
The difference between a pilonidal cyst and a pilonidal sinus — what the terms mean, how they relate, and why the distinction matters for treatment.
Read guide →Pilonidal cyst home treatment
What people try at home for pilonidal cysts and sinuses — what commonly helps, what does not, and when home care is not enough.
Read guide →Recovery after pilonidal sinus surgery
Learn what to expect after pilonidal sinus surgery, including wound care, healing timelines, and when to seek medical care during recovery.
Read guide →Pilonidal cyst wound not healing
When a pilonidal cyst wound is not healing as expected — what causes delayed healing, when to be concerned.
Read guide →Pilonidal cyst recurrence options
What to do when a pilonidal cyst comes back — why recurrence happens, the treatment options for recurring disease, and how to make decisions about next steps.
Read guide →Cleft lift surgery for pilonidal disease
How cleft lift surgery works for pilonidal disease, why it has high success rates, and what recovery looks like.
Read guide →At a glance
A pilonidal sinus is a small tunnel or cyst that forms in the skin at the top of the buttock crease, near the tailbone. It can become infected, causing pain, swelling, and drainage. Flare-ups range from a one-time event to a recurring pattern that may need surgical treatment. Our basics guide covers what people typically experience and when to seek care.
Common symptoms people report
- Pain, tenderness, or swelling near the tailbone
- A lump or dimple at the top of the buttock crease
- Drainage of fluid or pus, sometimes with an unpleasant smell
- Discomfort when sitting, especially on hard surfaces
- Redness and warmth over the area during a flare-up
- Symptoms that come and go — quiet periods followed by painful episodes
Explore by symptom
Start from what you're feeling.
Guides
Open a group to see every guide in it.
All guides
- Bascom procedure: what to expect — How the Bascom procedure works for pilonidal disease — the technique, who it is suitable for, and what recovery involves.
- Karydakis flap for pilonidal disease — How the Karydakis flap procedure works for pilonidal disease — the technique, success rates, and what recovery involves.
- Limberg flap for pilonidal disease — An overview of the Limberg flap procedure for pilonidal sinus — how it works, who it is suitable for, recovery expectations.
- Pilonidal cyst and sitting — Practical guidance on managing sitting with a pilonidal cyst — cushion options, posture adjustments, and strategies for work and daily life.
- Pilonidal cyst exercise and activity — How to manage exercise and physical activity with a pilonidal cyst — what is safe, what to avoid, and how to stay active during treatment and recovery.
- Pilonidal cyst in women — Pilonidal disease is less commonly discussed in women but does occur. What differs, what is the same, and the specific considerations for women.
- Pilonidal cyst laser treatment — Laser treatment for pilonidal sinus is a newer, minimally invasive option. What it involves, who it may suit, and what people report about recovery.
- Pilonidal sinus and hair removal — Does hair removal help prevent pilonidal sinus recurrence? What the evidence suggests, which methods people try, and the practical considerations.
- Pilonidal wound packing: how long — How long wound packing continues after pilonidal surgery or drainage — what to expect, when it reduces, and how to manage the process.
What people have been through
These are composite narratives drawn from multiple anonymized experiences. They represent common patterns, not any single person's story.
Early days
- Pilonidal cyst first flare up — What to do when a pilonidal cyst flares up for the first time — the symptoms, the immediate steps, and what to expect from treatment.
After a procedure
- Pilonidal cyst drainage recovery — What recovery from pilonidal cyst drainage is really like — the wound care, the healing timeline, and what people find helps during the weeks after the.
- Pilonidal cyst open wound timeline — What healing looks like after pilonidal cyst surgery with an open wound — a week-by-week timeline based on common patterns people describe.
- Pilonidal prevention after surgery — What people do to prevent pilonidal cyst recurrence after surgery — the daily habits, hair management, and lifestyle changes that help.
- Pilonidal surgery and the long recovery — A composite experience of pilonidal sinus surgery and the weeks-to-months recovery — from diagnosis through excision, wound packing.
Common questions
Can a pilonidal sinus come back after treatment?
Recurrence is one of the most common concerns people have. Rates vary depending on the type of treatment. Some surgical approaches have lower recurrence rates than others, and ongoing hair removal in the area is widely reported to help reduce the chance of it coming back.
How long does recovery from pilonidal surgery take?
This depends on the type of procedure. Some surgeries leave the wound open to heal gradually, which can take weeks to months. Others close the wound and tend to heal faster. Our surgery recovery guide covers what people commonly report for different approaches.
Is it normal to have drainage between flare-ups?
Some people with a chronic pilonidal sinus notice intermittent drainage even when the area is not acutely infected. This is worth mentioning to your doctor, as it may indicate an ongoing tract that could benefit from treatment.
What can I do to reduce flare-ups?
People commonly report that keeping the area clean and dry, removing hair from around the natal cleft, and avoiding prolonged sitting can help. These measures do not guarantee prevention, but they are widely considered part of ongoing management.
Related conditions
When to seek care Heavy bleeding or feeling faint? Get emergency help now. Emergency: 911
Not sure how urgent it is? Get help today.
- Emergency
Heavy bleeding, black tarry stools, feeling faint, severe pain or trouble breathing.
Call 911 or go to the ER.
- Today
Fever, pain getting worse, a hot swollen lump, or trouble passing urine.
Call your doctor or go to urgent care.
- Soon
Bleeding or bowel changes nobody has checked, or anything lasting 3 weeks.
Book a doctor’s appointment.
Feeling overwhelmed? Call or text 988, any time.
See all the signs
For this topic, get medical advice if you notice:
- Rapidly increasing pain, redness, or swelling near the tailbone
- Fever or feeling generally unwell alongside a painful lump
- Foul-smelling drainage that is getting worse
- Red streaks spreading outward from the affected area
- Pain that is severe enough to affect sleep or daily activities
- A flare-up that has not responded to warm compresses or basic self-care within a few days
Recording how you feel is not the same as being checked. These are the signs that need a doctor’s attention.
Call 911 or go to the emergency room now if you have:
- bleeding that will not stop, a lot of blood (the toilet water turns red, or you pass large clots), or any bleeding with feeling faint or dizzy
- fainting, a racing heart or trouble breathing
- confusion or slurred speech, extreme shivering, no urine in a day, or blotchy skin
- sudden severe belly pain, or a swollen, hard belly with vomiting or not passing stool or gas
- you cannot pass urine at all, or your bladder feels full and painful and you can’t empty it
- redness, swelling or severe pain spreading quickly around your anus, genitals or groin, especially with a fever or feeling very ill
- a fever with a painful swelling near your anus if you have diabetes or a weakened immune system (for example, from chemotherapy or transplant medicines)
- black, tarry stools
Call your doctor or go to urgent care today (or the ER if you can’t be seen today) if you have:
- a temperature of 100.4°F (38°C) or higher, chills, vomiting, or feeling generally unwell
- pain that is getting worse over days, or severe pain that stops you sitting or sleeping
- a hot, swollen or very tender lump near your anus or at the top of the crease between your buttocks, or foul-smelling discharge
- trouble urinating
- bleeding that is getting heavier or more frequent, or blood mixed into your stool
- feeling much more tired than usual, looking pale, or getting out of breath more easily than you used to
- not passing stool for several days, or new belly pain
Make an appointment with your doctor if:
- you have never had these symptoms checked by a doctor or nurse — whatever your age
- you have had rectal bleeding for more than 3 weeks
- your bowel movements have been looser, thinner or more frequent than usual for 3 weeks or more, or you have lost weight without trying
- symptoms have not settled after a week or so, or keep coming back
- you notice a new lump near your anus, between your buttocks or in your belly, or an itch or discharge that does not clear
- you have new leakage or trouble controlling your bowels
- you are 45 or over, or have a family history of bowel cancer or inflammatory bowel disease, and any of these symptoms are new for you
If you are unsure, it is always reasonable to ask. If things feel overwhelming, call or text 988 (Suicide & Crisis Lifeline) or chat at 988lifeline.org, any time. If you don’t feel safe, call 911.
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