Follicular: It is one of the follicular occulsion diseases like cystic acne but pilonidal sinus occurs at lower back sacral area of body.
Answered 10/3/2016
5.6k views
Rectal infection: A blindcutaneus sac arising from rectal glands often tender and infected resolves with drainage or excision.
Answered 11/7/2019
5.6k views
A tunnel : A pilonidal cyst is a chronic abscess or chronic infection usually at the top of the crease between your buttocks. When it tunnels to the surface to drain you are left with a sinus.
Answered 5/3/2017
710 views
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