Ask Smithsonian: What Is a Dimple? | At the Smithsonian | Smithsonian - Cause of a facial dimple turning into deep pit on
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In rare cases, they can indicate a deeper spinal abnormality. A sacral dimple will appear as a small dimple or pit in the lower back. Although the exact cause is unknown, it is believed it happens when loose hairs push into the skin. Those concerned about developing a sacral dimple later in life can. A sacral dimple is a small indentation in the lower back, just above or within the There are no risk factors for developing a sacral dimple. of extra skin); deep, meaning that there appears to be a hole inside the dimple that.