A broken tailbone causes sharp, localized pain right at the base of your spine that gets significantly worse when you sit down, stand up, or have a bowel movement. The tricky part is that a bruised tailbone causes very similar symptoms, and you often can’t tell the difference without imaging. But there are key patterns in the pain, specific signs to watch for, and a clear path to getting a definitive answer.
What a Broken Tailbone Feels Like
The tailbone (coccyx) sits at the very bottom of your spine, just above your buttocks. When it fractures, the pain is concentrated in that small area and tends to feel dull and achy most of the time, with occasional sharp stabs. You’ll notice the pain most during transitions: sitting down, standing up, leaning back in a chair, or bending forward. It’s not a vague low-back ache. If someone asked you to point to the pain with one finger, you’d land right on the tailbone.
Bowel movements are often particularly painful after a tailbone fracture. The rectum sits just in front of the coccyx, so any straining puts direct pressure on the fracture site. Many people instinctively start avoiding bowel movements, which makes the problem worse. Stool softeners can help reduce that pressure.
You may also notice swelling, tenderness to the touch, and bruising at the base of the spine. Sitting on hard surfaces becomes nearly unbearable, while lying on your side or standing tends to bring some relief.
Fracture vs. Bruise: Can You Tell the Difference?
Honestly, it’s very difficult to distinguish a fractured tailbone from a badly bruised one based on symptoms alone. Both cause pain in the same spot, both produce swelling and skin bruising, and both hurt when you sit. A bone bruise can hurt almost as much as some fractures.
There are a few clues that lean toward a fracture rather than a bruise. Fracture pain tends to be sharper, especially with movement, while bruise pain is more of a constant dull ache. A bruise also doesn’t make the bone less stable, so if you feel a clicking or shifting sensation when you move from sitting to standing, that points more toward a fracture or dislocation. But these distinctions aren’t reliable enough to diagnose yourself. The only way to confirm a fracture is with imaging.
How a Tailbone Fracture Is Diagnosed
X-rays are the first step. Standard X-rays of the lower spine can reveal fractures, abnormal curvature, or dislocations at the tailbone. One important detail: a regular lower-back X-ray may not show the coccyx clearly. Focused, “coned-down” views of the tailbone itself often need to be specifically requested to get adequate visualization. In some cases, your doctor may order seated and lying-down X-rays to compare, which can reveal instability that only shows up when you’re bearing weight.
The tailbone’s anatomy complicates things further. It’s made up of several small, fused segments, and minor fractures can hide along those natural joint lines. Without prior imaging for comparison, small breaks are easy to miss. If X-rays come back inconclusive but the pain persists, an MRI can help, though the coccyx is often cut off from standard lower-back MRI scans unless the radiologist is specifically asked to include it.
During a physical exam, the doctor will press along the tailbone and the joint where it meets the sacrum, checking whether the tenderness is concentrated at the coccyx or spread to surrounding structures. Some clinicians also assess the tailbone’s mobility through an internal exam, placing a gloved finger in the rectum to feel the bone from both sides. This helps determine whether the bone moves abnormally, which can indicate a fracture or dislocation.
Warning Signs That Need Immediate Attention
Most tailbone injuries, even fractures, are manageable at home. But certain symptoms suggest something more serious is going on. Numbness or tingling in your groin, inner thighs, or legs is a red flag. So is any new difficulty controlling your bladder or bowels, weakness in your lower extremities, or a combination of unexplained weight loss and fatigue alongside the pain. These symptoms point away from a simple coccyx fracture and toward nerve involvement or other conditions that need prompt evaluation.
Constant pain that doesn’t change with position, rectal bleeding, or visible drainage from the area are also signs to get checked without delay.
How a Broken Tailbone Is Treated
There’s no cast for a tailbone. The bone has to heal on its own, and the main strategy is reducing pressure on the fracture site. That means sitting on a donut-shaped or wedge cushion with a cutout at the back (often called a coccyx cushion), sleeping on your side, and avoiding hard chairs. Over-the-counter pain relievers help manage the day-to-day discomfort.
You’ll likely need to avoid physically demanding activities for a significant stretch. Diet matters too: eating enough fiber and staying hydrated (or using stool softeners) keeps bowel movements from becoming an ordeal. Some people find that applying ice to the area in the first few days, then switching to heat, helps with swelling and muscle tension.
How Long Recovery Takes
A tailbone fracture typically takes 8 to 12 weeks to heal. During that time, pain gradually decreases, though sitting for long periods may remain uncomfortable well into recovery. A bruise, by comparison, usually resolves in several weeks.
Some people develop chronic tailbone pain that lingers months or even years after the initial injury. This is more common in people with osteoporosis, those who sit for long hours at work, or cases where the fracture didn’t heal in proper alignment. Risk factors for the original injury, like weak muscles, osteoporosis, or contact sports, also increase the chance of a slower recovery.
In rare cases where pain becomes truly chronic and doesn’t respond to conservative treatment, surgical removal of the tailbone is an option. But this is typically reserved for people who’ve exhausted other approaches over a long period, not something considered in the early weeks after injury.
Common Causes of Tailbone Fractures
The most obvious cause is a direct fall onto your backside, like slipping on ice or falling off a chair. But fractures can also develop from repetitive pressure: prolonged sitting on hard, narrow surfaces (think long bike rides or rowing) can gradually crack the bone, especially if you have weakened bones from osteoporosis. Childbirth is another common cause, as the baby’s head passes directly over the coccyx during delivery.
People with conditions that increase fall risk or bone fragility are more vulnerable. Contact sports like hockey and football also carry higher risk due to direct impacts to the lower spine.