Pilonidal sinus surgery

A pilonidal sinus is a small hole or tunnel, almost always between the buttock cheeks, caused by ingrowing hairs

What is a pilonidal sinus?

A pilonidal sinus is an inflamed sinus tract or channel that commonly contains hair follicles.

It occurs under the skin between the buttocks, a short distance above the anus.

Germs can build up among the hairs within the sinuses causing swelling, discharge and infection.

Need to know

  • What happens during surgery? icon plus

    Your consultant will usually perform surgery by excising the abnormal skin with the sinus. It is undertaken using general anaesthetic. The resulting hole can be left open and packed with a dressing, closed with just a suture (a row of stitches holding together the edges of the incision), or with a ‘flap’ of nearby tissue.
  • How to prepare icon plus

    Your consultant will let you know how best to prepare for your procedure.
  • After surgery icon plus

    You will need to take pain relief as prescribed by your consultant, especially prior to dressing changes. Your wound may be left open and packed with a dressing known as Aquacel or Kaltostat each day.

    If your wound has had a primary closure (been stitched up during surgery), you will be advised of this and when the sutures will need removing.

Our colorectal consultants

We're proud to work with leading colorectal surgeons, with experience in diagnosing, treating and managing conditions related to the colorectal area, and whose skills are matched by their integrity and compassion. 

Our locations

From complex colorectal surgery to investigative tests, scans and endoscopic procedures, we provide exceptional care across our network of hospitals, outpatient centres and specialist clinics.

Book an appointment

Our team can help with any enquiries or you can make an appointment with one of our experienced consultants.

Call us today

020 7079 4344
This content is intended for general information only and does not replace the need for personal advice from a qualified health professional.
back to top