What Is the Coccyx?
Coccyx is the small, curved bone at the base of the spine, commonly called the tailbone. The coccyx connects with the sacrum and supports nearby ligaments, muscles, and pelvic floor tissues. Its position helps explain why pressure, falls, prolonged sitting, or referred pain can affect the lower back and buttock area.
Quick Facts About Coccyx
Category
Lower spine bone
Used for
Understanding tailbone and lower back symptoms
Common confusion
Often confused with the sacroiliac joint
Also called
Tailbone
Often discussed with
Back Pain Treatment
Key Takeaways About Coccyx
- The coccyx sits below the sacrum at the spine’s lower end.
- Pain near the coccyx can affect sitting and movement.
- The coccyx is not the same as the sacroiliac joint.
How Coccyx Works
Coccyx works as the terminal part of the spinal column, where several soft tissues attach. The bone has limited movement, yet its position influences how the pelvis and lower back share pressure during sitting, standing, and changing position. Nearby tissues can also refer discomfort into the buttocks or lower back.
Related glossary terms: Lumbar Spine, Sacroiliac Joint, Pelvic Floor.
Assessment focuses on the location, pattern, and triggers of symptoms. A clinician may review sitting tolerance, pelvic movement, spinal motion, and tenderness around the tailbone. The sacrum and pelvic floor are often considered because they connect functionally with the coccyx. These findings help distinguish coccyx-related discomfort from symptoms arising elsewhere in the lower back or pelvis.
From the Arrowhead Clinic Chiropractor Garden City team
When we assess coccyx-related concerns, we review the lower back, pelvis, sitting patterns, and nearby soft tissues together. We also consider whether movement or pressure changes the symptoms, because tailbone discomfort can overlap with conditions affecting the lumbar spine or sacroiliac joint.
Coccyx in Practice: A Real-World Example
A person with back pain may notice sharper discomfort while sitting on a firm chair or rising from a seated position. The care plan considers the coccyx alongside the lumbar spine and pelvis to identify the most relevant source of symptoms.
Related Services
Related Terms
Lumbar Spine
Lumbar Spine is the lower section of the vertebral column between the thoracic spine and pelvis…
Sacroiliac Joint
Sacroiliac Joint is the connection between the sacrum at the base of the spine and the…
Pelvic Floor
The pelvic floor is a group of muscles and connective tissues that supports the pelvic organs…
Spinal Cord
The spinal cord is a long bundle of nerve tissue that carries messages between the brain…
Arrowhead Clinic Chiropractor Garden City
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