Pain right at the base of your spine that gets worse when you sit — especially on hard chairs — is usually coccydynia, pain arising from the coccyx (tailbone). It's more common than most people realise, rarely serious, and in most cases settles completely without surgery. This guide walks through why it happens, when to worry, and the full treatment ladder — backed by current orthopedic and pain-medicine literature.
🕐 7 min read · Evidence-based · Reviewed against current clinical literatureCauses and what is actually going wrong at the tailbone
The coccyx (tailbone) is the small, triangular set of 3–5 bony segments at the very bottom of your spine, below the sacrum. It normally flexes slightly backward when you sit, acting as one of three points of weight-bearing support (along with your two sitting bones). Coccydynia happens when that small joint or the surrounding ligaments and muscles become irritated, injured, or move abnormally.
📊 Coccydynia is roughly 5 times more common in women than men — the female pelvis and coccyx anatomy makes the joint more exposed to childbirth-related and posture-related strain. It is also more likely in people who are overweight, since more pressure is transferred onto the coccyx while sitting.
Rarely, tailbone pain is caused by infection, a bone lesion, or a tumour of the sacrococcygeal region — this is why a doctor examining unexplained tailbone pain will always check for other causes before assuming it is simple coccydynia.
How to recognise coccydynia
Pain relief on standing or lying down, and a very localised area of tenderness right at the tailbone, are the two features that most reliably point to coccydynia rather than a lower back or hip problem.
Signs that this may not be simple coccydynia
⚠️ Seek prompt evaluation if you have: fever or feeling generally unwell alongside the pain · pain that is worse at night or does not ease with rest · unexplained weight loss · numbness, tingling, or weakness in the legs · loss of bladder or bowel control · a visible lump or skin changes near the tailbone. These can point to infection, a pilonidal cyst, nerve involvement, or — rarely — a tumour, and need a proper clinical work-up rather than home care.
Most people with these red flags do not turn out to have anything serious — but they are exactly the reason a doctor examines and, if needed, images the area before labelling pain as "just coccydynia."
What genuinely helps most patients before any procedure
The good news: the majority of coccydynia cases improve substantially with simple measures within a few weeks to a few months, without needing any injection or procedure.
💡 If you sit for long hours at work, a coccyx cushion is genuinely one of the highest-value, lowest-cost things you can do — most patients notice a difference within days.
From simple self-care to procedures, only if needed
Treatment for coccydynia follows a clear ladder — we always start at the top, and only move down if a stage genuinely fails to help after a fair trial.
Cushioning, activity modification, anti-inflammatories, and physical therapy (stretching and manual manipulation of the coccyx have supporting clinical evidence). This resolves the large majority of cases without any procedure.
An injection around the sacrococcygeal joint, useful both to confirm the diagnosis and to treat it. Studies report roughly 60% success with injection alone, rising to around 85% when combined with manual manipulation of the coccyx.
A precise, image-guided injection targeting the nerve cluster just in front of the coccyx. This is particularly effective for coccydynia without a clear cause, with studies reporting meaningful pain reduction (roughly 50–70%) that can last for months. It is a well-tolerated outpatient procedure.
For pain that responds to a ganglion impar block but keeps returning, pulsed radiofrequency can extend that relief for refractory cases, with an evidence base similar in effect to repeat blocks.
Reserved for chronic pain (typically after 6–12 months) that hasn't responded to the steps above. When patients are correctly selected, published success rates are around 80–90% — but the procedure carries a notably higher infection risk than most orthopedic procedures, and recovery takes patience. This is why every non-surgical option is given a genuine trial first.
📋 Evidence note: A 2022 systematic review (Global Spine Journal) and multiple case series consistently support this staged approach — conservative care and manipulation first, image-guided injections for those who don't settle, and coccygectomy reserved for well-selected, refractory cases.
What I tell every patient who comes to me with tailbone pain
"Tailbone pain looks alarming because it sits right on the spine, but it is rarely a serious problem. Most patients I see improve with a cushion, posture changes, and a few weeks of patience — before we even discuss an injection. The step most people skip is a proper examination to rule out the rarer causes. Once we've confirmed it's straightforward coccydynia, we go step by step, and surgery is genuinely the last conversation, not the first."
— Dr. Sumit Dubewar · DABRM (USA) · Secunderabad
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