Pain at the xiphoid process, the small piece of bone and cartilage at the very bottom of your breastbone, is a recognized medical condition called xiphodynia (sometimes spelled xiphoidalgia). It is uncommon but real, and it can radiate into the chest, upper abdomen, throat, and even the arms, which is exactly why it alarms so many people who feel it for the first time.1PubMed Central. Treatment and Management of Xiphoidalgia The condition is musculoskeletal in nature, meaning the pain originates from the bone, cartilage, or surrounding soft tissue rather than from your heart, lungs, or stomach. Understanding the anatomy helps explain why this spot is so prone to irritation and why the diagnosis is so often missed.
What the Xiphoid Process Actually Is
The xiphoid process sits at the inferior tip of your sternum, right where your lower ribs meet in front. If you press your fingers into the soft area just below where the ribcage comes together at center-chest, you are touching or very near it. In textbooks it is usually drawn as a small, straight piece of bone, but in reality its shape varies wildly from person to person. It can be pointed, oval, or forked; it can curve forward, backward, or into an S-shape; and over half of all xiphoid processes contain one or more natural holes (foramina) in the tissue.2PubMed. Morphology of the human xiphoid process: dissection and radiography of cadavers and MDCT of patients The xiphoid can also be broad, thin, bifid (split at the tip), or deflected to one side.3PubMed Central. Xiphoid Process Variations: A Review with an Extremely Unusual Case Report
Another important detail is that the xiphoid often remains partly cartilaginous well into adulthood. A comprehensive anatomical study found that roughly 85 percent of xiphoid processes still contained some proportion of cartilage, with nearly half showing very little ossification at all.4PubMed. Revisiting morphology of xiphoid process of the sternum in human: a comprehensive anatomical study That mix of bone and cartilage makes the xiphoid more flexible than the rest of the sternum, but also more susceptible to inflammation when it is bumped, compressed, or repeatedly stressed. The joint where the xiphoid meets the body of the sternum (called the xiphisternal joint) is itself a site where irritation frequently develops.
Why the Xiphoid Process Can Become Painful
Xiphodynia does not have a single cause. Several different triggers can inflame or irritate the xiphoid and the muscles and ligaments attached to it. The most common broad categories are direct trauma, repetitive microtrauma, and sometimes no identifiable cause at all.
- Blunt trauma: A fall, a car accident with seatbelt compression, or a blow to the chest during contact sports can directly injure the xiphoid. In one documented case, a woman developed severe epigastric pain that persisted for six years after receiving chest compressions during cardiac arrest. Imaging eventually revealed abnormal bone growth (heterotopic ossification) at her xiphoid.5PubMed. Heterotopic Ossification of the Xiphoid After Chest Compressions
- Repetitive compression: Activities that press against the lower sternum over and over can gradually inflame the area. A case report described a 53-year-old man with more than 30 years of surfing experience who developed chronic upper abdominal wall pain because his surfboard repeatedly compressed his forward-protruding xiphoid. CT imaging showed thickened skin overlying the bone.6PubMed. Xiphoidectomy for xiphoid process-induced pain in a surfer
- Anatomical prominence: In some people the xiphoid process angles forward more sharply than average, creating a visible or palpable bump under the skin. Researchers measured the xiphosternal angle in three patients with xiphodynia and found angles of 105°, 120°, and 135°, compared to an average of about 172° in people without xiphoid pain. That sharper angle made the bone protrude, causing discomfort and local irritation.7Joint Bone Spine. Xiphodynia and prominence of the xyphoid process. Value of xiphosternal angle measurement: Three case reports
- Heavy lifting or core strain: Several abdominal and chest muscles attach to or near the xiphoid, including the rectus abdominis and the diaphragm. Intense or sustained use of these muscles can pull on the xiphoid and inflame the joint. Prolonged coughing, vomiting, or even vigorous abdominal exercises have been linked to flare-ups.
Sometimes xiphodynia simply appears without an obvious injury. In those cases, chronic low-grade strain, poor posture, or age-related changes in the cartilage are the usual suspects, but the honest answer is that the exact trigger is not always identifiable.
What the Pain Feels Like and Where It Spreads
The hallmark of xiphodynia is tenderness right at the bottom of the breastbone, usually made worse by pressing on the spot. But the pain does not always stay put. It can radiate into the chest wall, the upper abdomen, the lower throat, and even the arms.1PubMed Central. Treatment and Management of Xiphoidalgia That radiation pattern is one of the main reasons the condition causes so much alarm: pain spreading from the center of the chest into the arms sounds a lot like a heart attack to the person experiencing it.
Movements that flex the trunk, like bending forward or twisting, often make it worse. So do actions that engage the core muscles, such as getting up from a lying position. Some people notice the pain is worse after eating a large meal, because a full stomach pushes upward against the diaphragm and the xiphoid area. Others find that tight belts, waistbands, or body armor aggravate the spot.
Why Xiphodynia Gets Mistaken for Something Else
One of the most frustrating aspects of xiphoid pain is how long it can take to get a correct diagnosis. Because the pain sits at a crossroads between the chest and abdomen, it overlaps with the presentation of several more common and more dangerous conditions. Doctors typically rule those out first, which is the right thing to do, but it means xiphodynia itself often goes unrecognized for months or even years.
Musculoskeletal chest wall pain in general is frequently mistaken for angina, pleurisy, and other serious disorders.8PubMed Central. Musculoskeletal chest wall pain With xiphodynia specifically, the typical differential diagnoses include pulmonary embolism, peptic ulcer disease, gallstones, and coronary artery disease. Patients in one case series were only included in the xiphodynia group after all those other conditions had been explicitly excluded through testing, including cardiac workups and imaging for aortic aneurysm and pericarditis.9PubMed Central. Xiphodynia as an Unusual Cause of Chest Pain: A Case Series
There is also genuine overlap with gastrointestinal conditions. Research on burning pain behind the xiphoid area (retroxiphoid pyrosis) found that it correlated with inflammation of the stomach lining near the esophageal junction, rather than with esophagitis itself.10Digestion. Analysis of Gastroduodenitis and Oesophagitis in Relation to Dyspeptic/Reflux Symptoms This means that if you have gastritis or acid-related disease, the pain can genuinely register in the same zone as xiphodynia, making it harder to tease apart which condition is doing the talking. In some people both problems coexist.
The Anxiety Problem
The diagnostic delay is not just inconvenient; it takes a psychological toll. Because xiphoid pain mimics cardiac symptoms, people often become convinced they have undiagnosed heart disease. Clinicians who have written about the condition have specifically urged physicians to provide reassurance, noting that the pain of xiphodynia can cause significant anxiety as patients worry about an underlying cardiac problem. This anxiety can itself amplify the perception of pain and lead to repeated emergency room visits, additional testing, and growing frustration on both sides of the exam table.
If you have had cardiac and GI workups that came back clean but the pain at the base of your sternum keeps returning, it is worth specifically asking your doctor about xiphodynia. The condition is under-recognized in part because it is not covered in depth during most medical training, so a gentle prompt can be the thing that moves the conversation forward.
How Xiphodynia Is Diagnosed
There is no single blood test or imaging study that definitively confirms xiphodynia. The diagnosis is clinical, meaning it is made based on the history and the physical exam after other causes have been ruled out. The most reliable bedside test is straightforward: if pressing directly on the xiphoid process reproduces your pain, and other conditions like cardiac disease and reflux have been excluded, xiphodynia is the most likely explanation.9PubMed Central. Xiphodynia as an Unusual Cause of Chest Pain: A Case Series
A diagnostic injection can also help pin things down. In one case, a patient underwent extensive testing that showed no abnormalities, but tenderness was identified on palpation of the xiphoid. When a local anesthetic (lidocaine) was injected at the site and the pain went away, xiphodynia was confirmed.11PubMed Central. Xiphodynia with limited decrease in the xiphoid process-sternal angle but recognised compression of the rectus abdominis That same case report suggested that looking for compression of the soft tissues in front of the xiphoid on imaging could be a valuable sign.
CT scans are sometimes used to evaluate the xiphoid’s shape and angle, but imaging alone does not reliably distinguish painful from non-painful xiphoid processes. A case-control study comparing CT measurements between people with xiphodynia and people without found no significant differences in the angles, shapes, or tissue signs they measured.12PLOS ONE. A case-control study evaluating CT signs of xiphoid process associated with xiphodynia In other words, a “weird-looking” xiphoid on a scan does not necessarily mean it hurts, and a normal-looking one does not rule out xiphodynia. The physical exam remains the most reliable tool.
What You Can Do About It
Treatment for xiphodynia starts conservatively and escalates only if simpler approaches fail. Here is how the options break down.
At-Home and First-Line Measures
Avoiding the aggravating activity is the most obvious starting point. If a specific exercise, piece of equipment, or postural habit is compressing or straining the xiphoid area, modifying or stopping it gives the inflammation a chance to settle. Over-the-counter anti-inflammatory medications like ibuprofen or naproxen can help manage the pain and reduce local swelling. Ice applied over the area for 10 to 15 minutes at a time is a reasonable low-risk option. Loosening tight clothing, belts, or protective gear that presses on the lower sternum may also bring relief.
These measures work well for mild or activity-related cases, especially when the pain is recent and clearly linked to a trigger. For chronic or moderate-to-severe cases, they may not be enough on their own.
Injections
Local injection with an anesthetic-steroid combination is one of the most effective treatments and is sometimes described as curative.13The Journal of Emergency Medicine. Xiphodynia: A report of three cases The injection is performed in an office setting, using a needle to deliver a local anesthetic (like lidocaine) and a corticosteroid directly to the xiphoid area. Some patients get lasting relief from a single injection. Others need a series. In the case of the woman with post-CPR xiphoid pain, an injection provided relief for four days and served as confirmation that the xiphoid was the pain source, though it was not enough for a permanent solution in her case.5PubMed. Heterotopic Ossification of the Xiphoid After Chest Compressions
Surgical Removal
When conservative treatment and injections fail to provide lasting relief, surgical removal of the xiphoid process (xiphoidectomy) is an option. This is not a first-line treatment, and it is typically reserved for cases where pain has persisted for at least a year despite trying other approaches.14PubMed. Xiphoidectomy for Intractable Xiphodynia The results are generally encouraging. In one surgical series, about 94 percent of patients reported improvement after the procedure, and roughly two-thirds were completely pain-free at a follow-up averaging nearly three years later.15PubMed Central. Operative results after xiphoidectomy in patients with xiphodynia
That said, surgery does not guarantee a cure for everyone. In a separate series of ten patients who underwent xiphoidectomy for intractable pain, eight achieved significant relief. The two who did not had both previously undergone major chest or abdominal surgery (sternotomy and upper midline laparotomy), suggesting that prior surgical disruption to the area may make outcomes less predictable.14PubMed. Xiphoidectomy for Intractable Xiphodynia If you have had previous chest surgery and are considering xiphoidectomy, this is worth discussing with your surgeon.
When to See a Doctor Urgently
Because xiphoid pain sits in the same neighborhood as cardiac, pulmonary, and serious abdominal conditions, there are situations where you should not assume the pain is musculoskeletal. Seek prompt medical attention if the pain comes with shortness of breath, dizziness, radiating arm or jaw pain, fever, vomiting blood, or a sudden onset that feels different from any pain you have had before. These could signal conditions like a heart attack, pulmonary embolism, or perforated ulcer, all of which require urgent evaluation.
If your pain has been evaluated and those diagnoses have been excluded, but the pain persists and is reproducible by pressing on the xiphoid, the picture shifts strongly toward xiphodynia. At that point, the goal is management and relief rather than emergency workup.
Sports and Activities That Especially Stress the Xiphoid
Certain activities put the xiphoid process under more strain than everyday life. The surfing case mentioned earlier is a dramatic example: decades of lying prone on a board placed direct, repeated pressure on the xiphoid, eventually causing chronic pain and tissue changes.6PubMed. Xiphoidectomy for xiphoid process-induced pain in a surfer But surfing is far from the only culprit. Rowing, where the catch position flexes the trunk and compresses the lower sternum against the oar handle, has been implicated anecdotally. Martial arts and combat sports bring direct impacts to the chest. Weightlifting movements that heavily engage the core, like heavy deadlifts or front squats with a barbell resting near the sternum, can irritate the xiphisternal joint.
If you are an athlete experiencing pain in this area, modifying technique or equipment often helps. Surfers can try thicker wetsuits or chest padding. Rowers can adjust their handle height. Lifters can experiment with bar position. The key insight is that the xiphoid is a small, partly cartilaginous structure that was never designed to absorb repetitive focused pressure, so reducing that pressure is usually the most effective intervention.
Why Your Xiphoid Process May Feel Like a Lump
A surprisingly common reason people become aware of their xiphoid in the first place is noticing a firm bump at the base of the sternum and becoming alarmed that it might be a tumor. The xiphoid process is a normal anatomical structure, but because it varies so much in shape and angle, some people’s xiphoid is more prominent under the skin than others. A xiphoid that angles forward sharply, as seen in the patients with reduced xiphosternal angles, can feel like a distinct lump, especially if the person has lost weight recently or has low body fat in the area.7Joint Bone Spine. Xiphodynia and prominence of the xyphoid process. Value of xiphosternal angle measurement: Three case reports
This prominence is usually harmless, but when it is also tender, it fits the xiphodynia picture. If you have recently noticed a lump at the bottom of your breastbone and it hurts when you press it, mentioning the xiphoid to your doctor can shortcut what might otherwise become a long and anxiety-provoking diagnostic journey. A physical exam and, if needed, a simple X-ray or CT scan can quickly confirm that the lump is just your xiphoid doing its thing at an unusual angle.
How the Xiphoid Changes as You Age
The xiphoid process is not static throughout life. In younger people it tends to be mostly cartilage, and it gradually ossifies over the decades. A comprehensive study found that nearly half of xiphoid processes showed very little ossification, with another 20 percent showing partial ossification, and only about 15 percent being fully or near-fully ossified.4PubMed. Revisiting morphology of xiphoid process of the sternum in human: a comprehensive anatomical study As ossification progresses, the xiphoid can become stiffer and potentially more brittle, which may change how it responds to trauma or repeated stress. Some researchers have noted that the ossification pattern is so variable between individuals that it is unreliable as a tool for estimating age, even though forensic scientists have occasionally tried to use it that way.
This gradual stiffening could help explain why some people develop xiphoid pain later in life without an obvious new injury. A structure that used to absorb a certain amount of stress as flexible cartilage may start protesting when it hardens into bone. Combined with age-related changes in posture, muscle tone, and body composition, the xiphoid may simply become more vulnerable over time.
The Xiphoid in Evolutionary Context
Humans are not the only animals with a xiphoid. In mammals generally, the sternum consists of a large front element (the manubrium), a series of middle segments, and a usually pointed terminal element at the bottom, which is the xiphoid.16Scientific Reports. The earliest segmental sternum in a Permian synapsid and its implications for the evolution of mammalian locomotion and ventilation The xiphoid serves as an attachment point for the diaphragm and abdominal muscles, playing a structural role in breathing mechanics and core stability. In some mammals the sternal segments fuse together during development, which also happens to varying degrees in humans.
From an evolutionary standpoint, the xiphoid is a perfectly functional anchor for the muscles of respiration and the abdominal wall. It was not, however, “designed” for the kinds of sustained external pressures modern humans subject it to: hunching over desks, wearing tight tactical gear, lying on surfboards, or performing high-intensity core exercises. Its vulnerability to pain says less about a flaw in the anatomy and more about a mismatch between the structure’s original mechanical role and the demands we now place on it.