Pilonidal sinus disease is a chronic condition of the natal cleft characterised by the formation of sinus tracts, cysts and abscesses driven by hair penetration and local sepsis. Surgical management ...

Pilonidal sinus disease (PSD) is increasing globally. A recent meta-analysis and merged-data analysis showed that recurrence rates in PSD depend essentially on follow-up time and specific surgical ...

Also known as a pilonidal cyst, the condition forms when a sac of tissue fills with air or fluid in the crease of your buttocks. Pilonidal cyst, doctors say, is mostly caused by a skin infection.