Pilonidal sinus

Pilonidal sinus

What is Pilonidal Sinus?

A pilonidal sinus is a depression in the skin or small pit that occurs at the bottom of the tailbone (coccyx) and can become infected and filled with pus. Once infected, the technical term is pilonidal abscess. Pilonidal abscesses look like a boil at the bottom of the tailbone, just above the crack of the buttocks. It is more common in men than in women.

What are the symptoms pilonidal sinus?

The symptoms experienced by someone with a pilonidal sinus include the following:


  • Pain at the bottom of the spine.
  • Swelling at the bottom of the spine.
  • Redness at the bottom of the spine.
  • Draining pus.
  • Fever.


medical treatments?

Antibiotics alone do not heal a pilonidal sinus. Doctors have a number of procedures available, including the following treatments: The preferred technique for a first pilonidal sinus is incision and drainage of the sinus, removing the hair follicles, and packing the cavity with gauze. Marsupialisation – This procedure involves incision and draining, removal of pus and hair, and sewing of the edges of the fibrous tract to the wound edges. This creates an open wound that slowly covers with skin and prevents re-formation of the sinus. Another option is incision and drainage with immediate closing of the wound.