Pilonidal Cyst

• Pilonidal Cyst Overview
• Pilonidal Cyst Causes
• Pilonidal Cyst Symptoms
• When to Seek Medical Care
• Exams and Tests
• Pilonidal Cyst Treatment
• Self-Care at Home
• Medical Treatment
• Next Steps
• Follow-up
• Outlook
• For More Information
• Web Links
• Synonyms and Keywords
• Authors and Editors

Pilonidal Cyst Overview

A pilonidal cyst is a cyst at the bottom of the tailbone (coccyx) that can become infected and filled with pus. Once infected, the technical term is pilonidal abscess. Pilonidal abscesses look like a large pimple at the bottom of the tailbone, just above the crack of the buttocks. It is more common in men than in women. It usually happens in young people up into the fourth decade of life.