This study wants to improve patient care affected by pilonidal sinus during and after surgery. Pilonidal sinus excision is a frequent procedure, despite this, there is still not an appropriate surgical technique because of a lack of quality comparative studies.

This is a randomized controlled trial. The study will compare the healing of the surgical wound and the recurrence rate after excision and primary para-median closure versus narrow orifice excision (fistulectomy)

Group A: excision and paramedian closure according to modified Karydakis technique

Group B: removal / fistulectomy by scalpels or trephines of primary and drainage orifices, healing of the wound by secondary intention

Inclusion Criteria:

• Pilonidal cyst requiring surgery
• Signed Informed Consent Form

Exclusion Criteria:

• Abnormal lesions
• Injuries requiring a closing with rotation flap