This article does not cite any sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. November Learn how and when to remove this template message The intergluteal cleft, also known medically by various synonyms and colloquially as the butt crack or ass crack, is the groove between the buttocks that runs from just below the sacrum to the perineum , so named because it forms the visible border between the external rounded protrusions of the gluteus maximus muscles.
Uncomfortable shallow tear in skin; how to prevent? January 9, How can I prevent it from reoccurring? The tear is not near my anus so it's not an anal fissure , it's at the very top of my butt crack - several inches away from my anus. It hurts some and is a bit raw, but isn't bleeding now.