The coccyx (pl.: coccyges or coccyxes), commonly referred to as the tailbone, is the final segment of the vertebral column in all apes, [1] and analogous structures in certain other mammals such as horses.

May 14, 2026 · The coccyx is the triangular bony structure found at the bottom of the spine. It's composed of three to five bony segments held in place by joints and ligaments (tissue that connects …

The coccyx is your tailbone — the last bone at the bottom of your spine. It supports your weight and helps you keep your balance when you’re sitting down.

Sep 3, 2025 · The coccyx, or tailbone, is a small triangle-shaped bone derived from the fusion of four coccygeal vertebrae at the end of the vertebral column. It represents the embryonic remnant of the …

Dec 31, 2021 · The coccyx is the smallest and the most inferior bone in the spinal column. It is the terminal part of the vertebral column that makes up the very bottom portion of the spine below the …

Coccydynia simply means pain in and around the coccyx, which is a small triangular “tailbone” at the very bottom of your spine. On its own, coccydynia is not dangerous. But if it drags on, it can become …

Jul 6, 2026 · The coccyx, or tailbone, is a small bone made up of four fused vertebrae at the base of the spine. 1 While often overlooked, it can be a source of pain in many people.

Oct 30, 2023 · The coccyx, otherwise known as the tailbone, is a small triangular shaped bone comprised of four fused coccygeal vertebrae. It marks the terminal point of the vertebral column and …

Oct 24, 2025 · The coccyx forms the terminal vertebral column segment, typically comprising three to five progressively smaller vertebrae, which often partially or completely fuse over time.

The coccyx serves as a vital insertion site for multiple soft tissues and helps with several movements and activities that involve the spine and legs to work together.