Coccydynia means pain in the coccyx, or tail bone. The coccyx is named after the Greek for cuckoo, because someone suggested that the coccyx looks like a cuckoo's beak. Not very helpful for the 99% of the population that has no idea what a cuckoo's beak looks like. Dynia means chronic pain.
It has been said that the only thing more difficult than treating coccydynia is spelling it. The awkward spelling has led to many variations being seen, and used by doctors. These include coccyxdynia, coccygodynia, coccyodynia, coccidynia, coccigodynia, coccyxgodynia, coccydinia, coccidinia, coccalgia, coccyalgia, coccygalgia, coccydnia.
This page is mainly here to make sure that people who type one of these spellings into a search engine will be able to find this site. So excuse me if I repeat coccyxdynia, coccygodynia, coccyodynia, coccidynia, coccigodynia, coccyxgodynia, coccydinia, coccidinia, coccalgia, coccyalgia, coccygalgia, coccydnia, because the search engines give a higher score to pages that use a word more than once.
To put it another way, alternative names for coccydynia are:
The use of Greek words by doctors leads to a lot of confusion, such as hypotension being the opposite of hypertension, but sounding just the same. Similarly with hyperthermia and hypothermia. Hyper and hypo mean high and low. Why can't they use simple words like high and low, that everyone understands? Is it that they don't want people to understand? If coccydynia was called 'tail bone pain', which is all coccydynia means, then everyone would understand it and be able to spell it. But it wouldn't sound so technical and mysterious.