Yes, you can break your tailbone, though it’s less common than bruising it. The tailbone (coccyx) is a small triangular bone at the very bottom of your spine, and while it’s tucked in a somewhat protected spot, a hard enough impact can fracture or dislocate it. Most tailbone injuries come from falling backward onto a hard surface, and healing typically takes 8 to 12 weeks.
What Your Tailbone Actually Does
The tailbone might seem like a useless leftover, but it plays a real role in how your body works. It forms one leg of a three-point tripod, along with your two “sit bones” (the bony points you feel when sitting on a hard chair), that supports your weight whenever you sit down. It’s also an anchor point for muscles, ligaments, and tendons in your pelvic floor. That’s why a tailbone injury can make so many everyday activities painful.
The coccyx is made up of three to five small vertebral segments. In some people these segments are fused together into a single piece of bone, while in others they remain partially flexible with small joints between them. This structural variation from person to person helps explain why some people are more prone to tailbone injuries than others.
How Tailbone Fractures Happen
The most common cause is a backward fall, especially onto a hard surface like ice, stairs, or a hardwood floor. The direct impact drives force straight into the coccyx with nothing to cushion it. Contact sports, cycling accidents, and any activity where you could land hard on your backside also put the tailbone at risk.
Childbirth is another well-recognized cause. During vaginal delivery, the coccyx naturally flexes backward to make room for the baby’s head. In cases involving prolonged labor, a large baby, a narrow pelvis, or the use of instruments like forceps, the pressure on the coccyx can be extreme enough to cause a fracture or dislocation. These injuries are relatively rare but important to consider when tailbone pain persists after delivery.
Repetitive strain can also damage the tailbone over time. Activities that involve prolonged sitting on hard or narrow surfaces, like rowing or cycling, can gradually stress the bone and surrounding tissues enough to cause a stress reaction or fracture.
Symptoms of a Broken Tailbone
A fractured tailbone and a badly bruised one feel very similar, which makes it hard to tell the difference without imaging. Both cause pain and tenderness at the base of the spine, right above the crease of the buttocks. The key symptoms include:
- Localized pain that can be dull and achy or sharp and piercing, centered on the tailbone area
- Pain when transitioning from sitting to standing, often described as the worst moment
- Pain during bowel movements or urination, because the pelvic floor muscles attach to the coccyx
- Bruising and swelling around the base of the spine
- Pain or numbness while sitting, especially on hard surfaces
The severity of pain is generally the biggest clue. A fracture tends to produce more intense, persistent pain than a bruise. If your pain is severe or hasn’t improved after a month, that’s a strong signal the bone may actually be broken rather than just bruised.
How a Fracture Is Diagnosed
Doctors start with a physical exam, pressing on the tailbone area to pinpoint the pain. In some cases, a rectal exam helps the doctor feel the coccyx directly and check for abnormal movement or displacement.
X-rays taken from the side, in both sitting and standing positions, are the standard imaging tool. Comparing the two views can reveal whether the coccyx shifts too much between positions, with movement greater than 25 degrees suggesting instability. However, X-rays don’t always catch the fracture. In one documented case, a patient’s initial X-rays appeared normal, leading to years of undiagnosed pain before a CT scan and MRI finally revealed the fracture. When clinical suspicion is high but X-rays look clear, an MRI can pick up bone marrow changes and stress reactions that plain films miss.
Treatment and Recovery
The good news is that most tailbone fractures heal without surgery. Treatment focuses on managing pain and avoiding pressure on the area while the bone mends. A wedge-shaped or donut cushion with a cutout at the back takes pressure off the coccyx when you sit. Leaning forward slightly while seated also helps shift your weight onto your thighs instead of your tailbone.
Over-the-counter anti-inflammatory pain relievers can reduce swelling and discomfort. Stool softeners help if bowel movements are painful, since straining puts direct pressure on the coccyx. Ice applied to the area in the first few days helps control swelling, and some people find alternating with heat later on provides relief. A physiotherapist can also check your sitting posture, since poor posture can slow recovery significantly.
A fractured tailbone generally takes 8 to 12 weeks to heal. Bruises tend to improve faster, often within a few weeks. During recovery, you’ll likely need to modify how you sit, avoid prolonged time on hard chairs, and be cautious with physical activities that could jar the area.
When Surgery Becomes an Option
Surgical removal of the tailbone, called coccygectomy, is reserved for people who have a clear structural problem with the coccyx, significant disability, and months of failed conservative treatment. It’s not a first-line option, and there is still debate about it in the medical community, partly because the surgical site sits close to bacteria-rich skin, which raises the infection risk. Reported wound infection rates range from about 9% to as high as 22%, depending on the surgical technique used.
For patients who do undergo the procedure, surgeons use techniques like off-center incision placement and careful tissue dissection to minimize complications. Importantly, developing a wound infection after surgery doesn’t appear to predict whether the surgery will ultimately relieve pain.
Long-Term Outlook
Most people recover fully from a tailbone fracture with conservative care alone. However, some develop chronic tailbone pain that lingers well beyond the expected healing window. This chronic pain can interfere with sitting for long periods, standing, and even sleeping in certain positions. When tailbone pain becomes a persistent problem, it typically requires a more comprehensive management approach involving physical therapy, posture correction, and sometimes targeted injections to control pain while the area continues to heal.