Definition of Coccydynia
Coccydynia is pain in or around the area of the coccyx, more commonly known as the tailbone. The coccyx is the last bone at the base of the spine. Injury or strain to the surrounding ligaments and muscles may cause this pain and discomfort, which is most often felt while sitting. Coccydynia may require medical treatment if the pain is severe or impeding the ability to perform everyday activities.

What is the Anatomy of Coccydynia
Coccydynia occurs within the tailbone, at the lower part of the spine, which is representative of a vestigial tail. The name comes from the Greek word meaning cuckoo because of the appearance of the coccyx looks like a cuckoo’s beak. Three to five fused vertebrae make up the coccyx. On the ventral side of the coccyx, it is slightly concave while on th dorsal aspect it is slightly convex. Both sides have transverse grooves showing where the vestigial units were once fused. The coccyx is attached to the sacrum stemming from the dorsal grooves being attached with either a true synovial joint or a symphysis, as well as the anococcygeal ligament, coccygeal muscle and the gluteus maximus muscle.

Epidemiology
Coccygodynia accounts for fewer than 1% of all back pain conditions. It is five times more prevalent in women than in men, presumably because the bone is more prominent in women than in men. Although coccygodynia can occur over a wide age range, the mean age of onset is around 40 years.

Causes of Coccydynia

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