A bruised tailbone typically causes a dull, aching pain right at the base of your spine that gets noticeably worse when you sit down. If you recently fell on your backside, slipped on ice, or took a hard hit during sports, and now sitting feels awful, you’re likely dealing with a coccyx bruise. The good news is that a bruised tailbone heals on its own in about four weeks, but it helps to know exactly what you’re feeling, what makes it worse, and how to tell if something more serious is going on.
What a Bruised Tailbone Feels Like
The tailbone (coccyx) is a small, triangular bone at the very bottom of your spine. It sits right between your buttocks, and when it’s bruised, the pain is localized to that spot. You’ll feel tenderness when you press on the area directly, and you may notice swelling or a hard lump. Some people see reddish or bluish discoloration over the skin, though bruising isn’t always visible because the coccyx sits deep beneath layers of muscle and fat.
The hallmark sign is pain that flares when you sit, especially on hard surfaces. Standing up from a seated position is often the worst moment, producing a sharp spike of pain as your weight shifts. Leaning back in a chair can also be painful because it puts direct pressure on the tailbone. Many people find they instinctively shift to one side when sitting to take weight off the area.
Activities That Make It Worse
Sitting for long periods is the biggest aggravator. Hard chairs, wooden benches, and car seats are particularly uncomfortable because they concentrate pressure right where the bruise is. But sitting isn’t the only trigger. Bowel movements can cause pain because the muscles around the pelvic floor attach near the coccyx, and straining puts direct pressure on the injured bone. Pain during sex is also common for the same reason.
Repetitive motions like those in cycling or rowing can worsen things because they involve leaning back and forth, straining the tissues around the tailbone. Even walking may produce a mild ache, though it’s usually much more tolerable than sitting. If your pain is mainly triggered by sitting and standing transitions, that pattern alone is a strong indicator of a coccyx bruise.
Bruise vs. Fracture: How to Tell the Difference
The tricky part is that a bruised tailbone and a fractured tailbone feel very similar. Both cause pain in the same spot, both hurt when you sit, and both can swell. There’s no way to definitively tell the difference at home. But there are some clues.
A fracture tends to produce more intense pain, especially with any movement. If you heard or felt a crunching sensation at the moment of injury, that’s more suggestive of a break. A fracture is also more likely to severely limit your ability to move, while a bruise typically allows you to walk around and shift positions, even if it’s uncomfortable. With a bruise, you’ll have pain and tenderness but you can still function. With a fracture, even small movements like getting out of bed may feel unbearable.
An X-ray can reveal a fracture, but it won’t show a bruise. An MRI is the only imaging tool that can confirm a bone bruise. In practice, many doctors treat both injuries the same way (rest, pain management, cushioning) unless the fracture is displaced or symptoms are severe. The biggest practical difference is the timeline: a bruise typically heals in about 4 weeks, while a fracture can take 8 to 12 weeks.
Common Causes
The most common cause is a direct fall onto your backside. Slipping on ice, falling backward off a chair, or landing hard on a step are classic scenarios. Contact sports like football, hockey, and skateboarding account for plenty of tailbone bruises too. Childbirth is another well-known cause, since the baby’s head can press against the coccyx during delivery.
Sometimes there’s no single traumatic event. Sitting on hard surfaces for extended periods, day after day, can gradually bruise the tailbone through repetitive pressure. Cyclists and rowers are particularly prone to this kind of overuse injury. If your pain came on slowly rather than after a specific fall, the repetitive strain pattern is worth considering.
Managing the Pain at Home
The first priority is reducing pressure on your tailbone. A coccyx cushion (sometimes called a donut pillow or wedge cushion) has a cutout at the back so your tailbone doesn’t contact the seat. These make a noticeable difference for most people and are worth using for the full four-week healing period, at your desk, in the car, and anywhere else you sit regularly.
Ice the area for 15 to 20 minutes at a time during the first few days to reduce swelling. Wrap the ice pack in a cloth so it’s not directly on skin. After the initial swelling goes down, some people find alternating with a warm compress helps ease the aching. Over-the-counter anti-inflammatory pain relievers can help manage both the pain and swelling.
Avoid sitting for long stretches. If your job requires it, stand up and move around every 20 to 30 minutes. When you do sit, lean forward slightly to shift weight off the coccyx. Sleeping on your side rather than your back can also reduce nighttime discomfort. Increasing fiber or using a stool softener can make bowel movements less painful by reducing the need to strain.
Signs the Injury May Be More Serious
Most tailbone bruises are painful but not dangerous. However, a few symptoms suggest you should get evaluated. If your pain is so severe that you can’t sit, stand, or walk at all, a fracture is more likely and worth confirming with imaging. If you develop numbness or tingling in your legs, or any changes in bladder or bowel control (like difficulty urinating or incontinence), those are red flags that the injury may be affecting nearby nerves.
Pain that hasn’t improved at all after four to six weeks also warrants a visit, since it could mean you’re dealing with a fracture, a dislocation, or another condition entirely. Rarely, persistent tailbone pain turns out to be unrelated to trauma and has a different underlying cause that needs investigation.