Pilonidal sinus surgery

Category: General & Abdominal Surgery · All general & abdominal surgery

Pilonidal sinus surgery — General & Abdominal Surgery

What it is

Pilonidal surgery treats a pilonidal sinus — a small tunnel or pit in the skin at the top of the buttock crease that traps hair and debris and repeatedly becomes infected or forms abscesses.

Why it is done

Surgery is advised for recurrent infections, persistent discharge or a sinus that keeps troubling you despite simpler measures. An acute abscess may first need urgent drainage.

How to prepare

You will have a pre-assessment and fast before a general anaesthetic procedure. Hair removal around the area may be advised. Plan for time sitting less and help at home, because wounds in this area can heal slowly.

What happens during the procedure

Under general (or sometimes spinal/local) anaesthetic, the sinus tract is removed. Techniques vary: the wound may be closed with stitches, left open to heal from the base, or closed with a skin flap off the midline. Your surgeon will explain which suits your case.

Afterwards — recovery & results

Wound care is the main task afterwards: regular dressing changes or packing if the wound is open, keeping the area clean and hair-free. Healing takes weeks to a few months depending on technique. You will be shown what is normal and what needs review.

Risks & considerations

Risks include infection, bleeding, slow healing or wound breakdown, and recurrence — pilonidal disease can come back even after good surgery, which is why aftercare and hair control matter. Your team will support you through dressings clinics.

Watch: Pilonidal sinus surgery videos

Real procedure videos from the MedicalVideos.com library. Some clinical footage is graphic — that is the nature of a medical video library.

Frequently asked questions

Why does this keep coming back?

Hair and friction in the deep crease drive the condition, and the area is under constant pressure when sitting. Complete removal plus aftercare reduces but cannot eliminate recurrence.

Can I sit down after surgery?

Short periods are fine, but prolonged sitting on the wound slows healing early on. Your team will advise based on your procedure.

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Please note: This page is educational information about a medical procedure or test. It does not replace the instructions of your own care team, who know your situation and whose preparation, fasting and medication advice you should follow if it differs from anything here. If you have symptoms that worry you, or an appointment you do not understand, contact your clinical team.