Pilonidal Disease
Expert Diagnosis & Surgical Treatment

Common

Affects young adults, especially men

Recurrence

High if undertreated

Day Case

Most procedures same day

— What is Pilonidal Disease?

Understanding Pilonidal Disease

Pilonidal disease predominantly affects young adults, particularly men, and those with deep natal clefts, coarse or dense hair, or who spend prolonged periods seated. It is a condition that can significantly impact quality of life through recurrent pain, discharge and time off work, but with the right surgical treatment, the majority of patients achieve lasting resolution of pilonidal disease.

Early specialist assessment allows treatment to be tailored to the severity and pattern of disease. Modern surgical techniques, including flap procedures, aim to minimise recurrence and optimise healing. A personalised approach ensures a quicker return to normal activities with improved long-term outcomes.

Pilonidal Sinus

Pilonidal Sinus (Chronic)

One or more small pits or tracts in the natal cleft that may cause intermittent discharge, discomfort or recurrent localised swelling. Does not always require urgent treatment.

Pilonidal Abscess

Acute Pilonidal Abscess

A collection of pus in the natal cleft causing acute, severe pain and swelling. Requires prompt surgical drainage. Over 50% of patients develop a chronic sinus afterwards.

— Recognising Pilonidal Disease

Symptoms

Pain and Tenderness

Aching, throbbing pain in the natal cleft, worsened by sitting, movement or pressure. Can be severe during an acute abscess.

💧

Discharge

Intermittent discharge of pus or blood-stained fluid from one or more small openings (pits) in the natal cleft. May cause skin irritation and soiling.

🌡

Swelling and Redness

A swollen, red, tender lump in the natal cleft indicates an acute abscess requiring drainage.

📍

Pit or Openings

Small pits or holes visible in the midline of the natal cleft, the hallmark of pilonidal sinus disease.

🚫

Recurrent Episodes

Repeated cycles of acute infection, drainage, and incomplete healing are typical of undertreated or chronic pilonidal disease.

🔵

Hair in Sinus

Loose hairs may be visible emerging from the pit openings or within the sinus on examination.

⚕ Clinical Note

An acute pilonidal abscess is extremely painful and requires prompt drainage. Do not delay seeking assessment, untreated abscesses will not resolve spontaneously.

— Diagnosis

Investigation

1

Clinical Examination

The diagnosis is made clinically in the vast majority of cases. The natal cleft is examined for pits, sinuses, abscesses and surrounding inflammation.

2

MRI (Selected Cases)

For complex, recurrent or atypical disease, MRI provides detailed mapping of sinus tracts and their relationship to surrounding structures, essential for surgical planning.

3

Microbiological Swab

Swabs taken during drainage help identify causative organisms and guide antibiotic choice in cases with significant infection.

— Treatment Options

Management Pathway

1

Acute Abscess Drainage

Emergency or urgent treatment for acute infection
  • Incision and Drainage The abscess is opened under local or general anaesthetic, allowing pus to drain. This provides immediate pain relief but does not treat the underlying sinus and is followed by chronic sinus formation in the majority of patients.
  • Definitive Treatment After Drainage Definitive surgical repair of the sinus is planned after complete resolution of the acute infection, typically 6 to 8 weeks later.
Drainage relieves the abscess but is not a cure. A definitive procedure is required to prevent recurrence.
2

Minimally Invasive Procedures (SiLaT / Video-Assisted)

For uncomplicated pilonidal sinus
  • SiLaT (Sinus Laser Treatment) A laser fibre is introduced into the sinus tract and activated, destroying the sinus lining without the need for a large incision. Short recovery, minimal wound, low recurrence.
  • Video-Assisted Ablation (VAAP) A small scope is introduced into the sinus to visualise and destroy the tract under direct vision. Effective for primary sinuses with limited lateral extension.
Minimally invasive techniques are ideal for primary, uncomplicated pilonidal sinus in patients keen to minimise recovery time. Mr Kumar will advise if your disease is suitable.
3

Excision with Primary Closure (Limberg Flap / Cleft Lift / Karydakis)

For larger, recurrent or complex disease
  • Cleft Lift Procedure This is mainly for recurrent or complex pilonidal disease. The sinus is excised and the natal cleft is flattened by an asymmetric flap, removing the deep cleft that predisposes to recurrence. Recurrence rates below 5%.
  • Limberg Flap The Limberg (rhomboid) flap removes the pilonidal sinus and reconstructs the area with a rotated skin flap. By reducing wound tension, this technique enables improved healing, lower recurrence rates and a quicker recovery.
  • Karydakis Flap An elliptical excision with lateral closure that flattens the natal cleft. Well-established, excellent long-term results.
  • Excision and Healing by Secondary Intention Suitable for small sinuses in selected patients. The wound is left open to heal slowly. Simple but requires regular dressings and longer healing time.
The choice of procedure depends on the extent and complexity of your disease, previous treatments, and your recovery preferences. All options are discussed at consultation.

— Why Choose a Specialist?

Expert Pilonidal Care

Pilonidal disease is frequently undertreated, with simple drainage leading to recurrent cycles of infection. A specialist assessment ensures the right procedure is chosen from the outset, minimising recurrence and the impact on your life.

🎯

Right Procedure First Time

Choosing the appropriate surgical approach based on disease extent and patient factors reduces the risk of recurrence significantly.

Prompt Access

Acute abscesses are seen urgently. Definitive procedures are planned promptly to avoid months of recurrent infection.

💊

Minimally Invasive Options

Laser and video-assisted techniques for suitable cases offer rapid recovery and return to work.

End the Cycle of Recurring Infection

The right surgical procedure can provide lasting resolution of pilonidal disease.

Anatomy

Pilonidal Cyst

Pilonidal Cyst
Quick Facts

Affects mostly

Ages 15–35

Simple drainage recurrence

>50%

Day case rate

>90%

Book a Consultation

Specialist opinion when it matters

Appointments typically within 3–5 working days.