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Coccyx

 
, medical expert
Last reviewed: 06.07.2025
 
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The coccyx (os caccygis) is the result of the fusion of 3-5 rudimentary coccygeal vertebrae (vertebrae coccygeae). The coccyx is triangular in shape, slightly curved forward. The base of the coccyx faces upward, the apex faces downward and forward.

Tailbone pain during pregnancy

Pain in the tailbone

Osteochondrosis of the coccyx (coccygodynia)

For articulation with the sacrum, there are coccygeal horns (cornua coccygea). In adolescence, especially in women, the coccygeal vertebrae are connected by layers of cartilaginous tissue.

Coccyx

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