With a coccyx fistula (pilonidal sinus), ingrown hair at the tailbone causes inflammation of the fatty tissue under the skin. The infected area is red and weeping, and can be very painful. Good personal hygiene is a preventive measure, but sometimes an operation is needed to remove the fistula.
- Initially there is only a small pimple on the lower back (often directly at the cleft of the buttocks)
- This stage can persist for a long time
- Increasing redness, swelling and pain at this site
- Weeping (discharge of pus)
- Sometimes fever
Causes and treatment
The cause has not been clearly determined. Frequently, ingrown hairs are part of the problem.
- Strong hair growth
- Sitting down for extended periods
- Overproduction of sweat
- Insufficient personal hygiene
Further treatment by your doctor / in hospital
- Blood test (inflammatory markers)
- A coccyx fistula that doesn't cause complaints doesn’t have to be treated
- If an abscess has formed (collection of pus), a small incision will be made to drain the pus
- In the case of recurring infections, the fistula is removed by a small operation
What can I do myself?
- Good personal hygiene
- When sitting for prolonged periods, get up and walk around regularly
- Avoid / reduce overweight
When to see a doctor?
- Red, swollen and painful bump at the tailbone
- Weeping pimple at the tailbone
- Regularly recurring coccyx fistulas
pilonidal sinus, sinus pilonidalis, pilonidal cyst, jeep disease, sacral dermoid cyst