Coccydynia is tailbone pain that makes sitting, leaning back or standing up hurt. It is five times more likely in women than men. It lasts when something keeps loading pain-sensitive tissue: an injury, a tailbone that moves wrong, local inflammation, or a pelvic floor that keeps tensing up. A structured conservative plan (care without procedures) comes first. Then comes an image-guided block, when the exam points to a pain source.
Coccydynia is tailbone pain that makes sitting, leaning back, or standing up feel like a chore. It is far more common in women. Tailbone pain is five times more likely to occur in females than males. In 2026, the honest story is this. Most people do not need a procedure right away. But they also do not deserve months of guessing while your pain system learns the “wrong lesson.”
What causes coccydynia (tailbone pain)?
The failure is not in the first six weeks. It is at month four, when the assembly line offers two exits and neither one holds a diagnosis. Planning coccydynia treatment starts with knowing what makes the tailbone hurt in the first place.
In real life, tailbone pain usually comes from one or more of these:
- Direct trauma: falls, strain from childbirth, or repeated impacts can irritate the tissue around the tailbone.
- Biomechanics and coccyx mobility: the tailbone must move as you sit, stand, and shift position. If it moves too much, too little, or at the wrong time, you can overload pain-sensitive parts.
- Inflammation of local tissues: the ligaments, the bone’s thin outer skin, and nearby soft tissue can get irritated after a trigger. This can happen even when later scans show no clear “injury.”
- Muscle and pelvic floor guarding: chronic pain often causes reflex tightening. That tightening changes the load, and the pain loop feeds itself.
- Repetitive strain: long sitting, cycling, and work habits that press on the tailbone can keep the area touchy.
- No identifiable cause: about one-third of cases have no clear trigger. That is exactly when you need a structured diagnosis, not vague reassurance.
Reality check: the diagnosis is not “the tailbone” as a whole. It is a specific pain source within the tailbone area.
How is coccydynia diagnosed?
Diagnosis is where patients often get stuck. You get an X-ray report that says “no fracture.” Then you are told to “give it time,” with no plan for how you will know time is working.
We diagnose coccydynia in a set order:
- Targeted history: how it started (a fall, childbirth, long sitting). What makes it worse. Other symptoms, like numbness, pain that spreads, or bowel changes.
- Physical exam: we press on the tailbone and check how it moves. We check the pelvic floor and nearby muscles for tightness.
- Imaging when appropriate: plain X-rays, or X-rays taken while sitting and standing in some cases. This matters most when movement or alignment seems involved.
- Diagnostic injections when the generator is unclear: sometimes the pain location and the exam do not fully match. Then an image-guided nerve block can show if the suspect spot truly matches your pain.
You may suspect more widespread pelvic or nerve pain. If so, it is worth ruling out other conditions that can mimic tailbone pain. This is where an experienced pain management doctor matters. The treatment path changes depending on the pain source.
When does tailbone pain need an injection or procedure?
Procedures are for specific cases. They do not replace a conservative plan (care without procedures). And they are not “try everything until something sticks.” For coccydynia, the best procedure candidates are people who have:
- Pain that lasts despite a fair trial of home care and therapy
- A clear pain source on exam (tenderness, movement pattern, symptoms that match)
- Limits you can measure (work, driving, how long you can sit)
- No red flags that suggest a different diagnosis
Options (guided by imaging when needed) can include:
- Nerve block approaches to find and treat the pain
- Targeted injection strategies aimed at the pain source
Not every case should go to a procedure. Maybe the history and exam do not point to a specific source. Or maybe the conservative phase, without procedures, was never set up properly. Then an injection is often guesswork. Guesswork is how you end up on the assembly line again.
Your pain may also overlap with other regional pain patterns you have read about on our clinic pages. If so, it may help to see how we order procedures in general. Our procedure content uses the same framework we use for chronic pain treatment and image-guided choices. You can review it under interventional pain management.
Frequently asked questions
What are the most common coccydynia triggers?
Common coccydynia triggers include injury or repeated pressure, tailbone movement or alignment problems, and local tissue irritation. The pain gets worse with sitting, leaning back, standing up, or bowel movements. Treatment starts with taking pressure off. Then an exam guided by your symptoms confirms the pain source in the tailbone area. See also diagnostic nerve blocks.
How long does coccydynia usually last?
Coccydynia (tailbone pain) can last weeks, months or longer. Care in 2026 still relies on doing things in order, not rushing to procedures. If you do not improve with a structured conservative plan (care without procedures), that is the point to recheck the diagnosis. Then consider targeted next steps. See also image-guided procedures.
Does an MRI show the reason for coccydynia?
Often, MRI findings alone cannot explain coccydynia. Pain can last even when imaging looks normal. Diagnosis usually rests on the symptom pattern and tenderness on exam. Sometimes it also uses X-rays in motion or image-guided test steps. See also trigger point injections.
Is a nerve block approach useful for coccyx pain?
A nerve block can help when the pain source is unclear. It can also confirm that a suspected source matches your pain. It is not right for every case of tailbone pain. So we base it on whether the exam matches and how you responded to conservative care (care without procedures). See also sacroiliac joint injection.
When would radiofrequency ablation be considered for tailbone pain?
Radiofrequency ablation is usually not a first choice for classic tailbone pain. It targets specific nerves elsewhere. It may matter only if your wider pain pattern points to a source other than the tailbone area. See also digital X-ray imaging.
To discuss your own case, request an appointment through the appointment request form, call (314) 481-5000, or text (314) 886-5902. You can see the full range of pain treatments, read about the pain management doctors in St. Louis, or find both offices on the locations page.
Dr. Gurpreet Singh Padda, MD, MBA, MHP
