A fall can hurt your stomach for reasons ranging from a simple muscle bruise to serious internal bleeding, and the tricky part is that the pain alone rarely tells you which one you’re dealing with. The abdomen houses a dense collection of organs, blood vessels, and muscle layers, all of which can be damaged by the sudden impact or deceleration of a fall. Some causes are obvious and resolve on their own; others are subtle, develop hours or days later, and require emergency care. Understanding what might be going on beneath the surface helps you decide whether to ice it and rest or get to a hospital.
Organ Injuries From the Impact Itself
The most concerning reason your stomach hurts after a fall is direct injury to the solid organs inside your abdomen. The spleen and liver sit high in the belly, partly protected by the lower ribs but still vulnerable to blunt force. They are the most commonly injured abdominal organs in blunt trauma, and damage to either one can cause life-threatening bleeding.1PubMed Central. Blunt Spleen and Liver Trauma You don’t need to fall from a great height for this to happen. A hard landing onto a stair edge, a fall from a ladder, or even a ground-level tumble that catches you at the wrong angle can deliver enough force to crack or bruise these organs.
In a large study of over 2,800 patients with abdominal trauma, roughly 15% had a liver injury and about 11% had a splenic injury. A smaller group, around 2%, had damage to both organs at once.2PubMed Central. Prevalence, characteristics and treatment of concomitant injury to liver and spleen with vascular injury after blunt abdominal trauma Active bleeding from the spleen was present in nearly one in five of those patients, which underscores why splenic injuries get so much attention in emergency rooms. The kidneys, sitting farther back against the spine, are the next most frequently injured solid organ during falls.
What makes organ injuries deceptive is that the pain may not be dramatic at first. You might feel a dull ache on one side, a sense of fullness, or discomfort that you attribute to a bruise. Meanwhile, a small tear in the spleen can be slowly oozing blood into your abdominal cavity. The pain pattern depends partly on which organ is involved: liver injuries tend to produce right-sided or upper-middle abdominal pain, while splenic injuries usually cause left-sided or left-shoulder pain (more on that referred-pain phenomenon later).
Bowel and Mesenteric Injuries
Solid organs get most of the attention, but the intestines can also be damaged in a fall. The mechanisms are a bit different. When your body decelerates suddenly, the bowel loops keep moving forward briefly, creating a shearing force at points where the intestine is tethered in place. These fixed junctions are the most vulnerable spots for tearing or perforation.3Journal of Radiological Science. Delayed Perforation of Jejunum in Blunt Abdominal Trauma A direct crush between your spine and the impacting surface can also rupture a segment of bowel.
Bowel perforation is particularly dangerous because it leaks digestive contents into the abdominal cavity, triggering infection and inflammation. The early symptoms can be misleadingly mild: vague cramping, mild tenderness, a slightly bloated feeling. It often takes hours for the pain to become severe, by which point peritonitis may already be developing. Injuries to the mesentery, the tissue that anchors the intestines and carries their blood supply, can cause small hematomas that serve as early warning signs of a perforation that hasn’t fully declared itself yet.4PubMed. Small mesenteric hematoma following blunt abdominal trauma as early sign in computed tomography of occult small bowel perforation-report of 2 cases
Muscle and Abdominal Wall Damage
Not every post-fall stomach ache involves internal organs. The abdominal wall itself has layers of muscle, connective tissue, and blood vessels that can be bruised, torn, or strained. If you landed on something hard or twisted as you fell, the rectus abdominis (the “six-pack” muscle running down the front of your belly) can take a direct hit. A deep bruise here will feel tender to the touch, hurt when you sit up or cough, and may swell visibly.
A more serious version of this is a rectus sheath hematoma, where a blood vessel inside the muscle sheath ruptures and bleeds into the surrounding tissue. This usually involves a branch of the inferior epigastric artery, and the resulting blood collection can be surprisingly large.5International Journal of Clinical Case Reports and Reviews. Rectus Sheath Hematoma Causing Intraperitoneal Hemorrhage: An Atypical Emergency Diagnosis One reported case from a noncontact exercise injury measured roughly 6 by 4 by 18 centimeters, essentially a long sausage of blood inside the muscle wall.6Journal of Trauma and Injury. Rectus Sheath Hematoma Caused by Noncontact Strenuous Exercise The pain from a rectus sheath hematoma can mimic an internal organ injury, which is one reason doctors sometimes order imaging even when the fall seemed minor.
The distinction between muscle-wall pain and deeper organ pain matters for your peace of mind and your treatment. Muscle pain tends to get sharper when you tense your abs (try gently doing a partial sit-up from a lying position). If the pain gets worse when the muscle contracts, it’s probably in the wall itself rather than deeper inside. Doctors call this “Carnett’s sign,” and while it’s not foolproof, it’s a simple bedside test that helps sort things out.
Why Pain Shows Up in Unexpected Places
One of the more confusing aspects of abdominal pain after a fall is that it doesn’t always appear where the injury is. Visceral pain, the type that comes from internal organs, behaves differently from the pain you feel when you cut your finger or bruise your shin. It tends to be diffuse, hard to pinpoint, and frequently referred to areas far from the actual source. It also commonly brings along autonomic symptoms like nausea, sweating, and changes in heart rate.7PubMed Central. Visceral pain: the importance of pain management services
A classic example is the “Kehr’s sign,” where a ruptured spleen causes pain in the left shoulder. The injured spleen irritates the diaphragm, which shares nerve pathways with the shoulder, so your brain interprets the signal as shoulder pain even though nothing is wrong with your shoulder. Similarly, liver injuries can refer pain to the right shoulder. If you fell and your shoulder hurts without an obvious shoulder injury, and especially if you also feel lightheaded or nauseated, that combination should raise a red flag about a possible abdominal organ injury.
Rib fractures add another layer of complexity. Falls frequently crack ribs, particularly the lower ones that overlap the upper abdomen. A study of over a thousand patients with rib fractures found that about a third of those with fractures in the middle zone of the ribcage also had an underlying abdominal organ injury, most often to the liver, spleen, or kidney.8PubMed Central. Correlation of rib fracture patterns with abdominal solid organ injury: A retrospective observational cohort study So what you experience as rib or flank pain might actually be the external face of a deeper problem.
The Vasovagal Response and “Nervous Stomach” Pain
Sometimes the stomach pain after a fall has less to do with direct tissue damage and more to do with your nervous system’s reaction to the event. A fall, especially an unexpected or frightening one, can trigger a vasovagal response where blood pressure drops sharply. To compensate, your body clamps down on blood vessels throughout the viscera and skin, trying to redirect blood back to the heart and brain. That visceral vasoconstriction causes the gut to cramp, producing genuine abdominal pain even in the absence of any structural injury.9PubMed Central. Adult vasovagal syncope with abdominal pain diagnosed by head-up tilt combined with transcranial doppler: a preliminary study
This type of pain usually comes with other telltale signs: you feel pale, clammy, possibly dizzy or like you might faint. Your heart rate may slow down or speed up erratically. The pain often sits in the center of the abdomen and feels crampy rather than sharp. The good news is that this type of pain resolves once your nervous system settles down, usually within minutes to an hour. The less-good news is that these same symptoms, pallor, sweating, fast heart rate, and belly pain, can also indicate internal bleeding, so you can’t always tell them apart without medical evaluation.
When Pain Shows Up Hours or Days Later
One of the scariest aspects of abdominal injuries from falls is the phenomenon of delayed presentation. You feel fine immediately after the fall, maybe just sore. Then, days later, you develop worsening abdominal pain. The most well-documented example of this is delayed splenic rupture, where an initial injury to the spleen creates a small tear or subcapsular hematoma that is contained at first. Over the following days, the damaged tissue gives way, and the spleen bleeds freely into the abdomen.
A case report describes a patient who fell in the hospital, was treated and discharged, and then presented nine days later with abdominal pain. Imaging revealed splenic rupture and blood throughout the abdominal cavity.10PubMed Central. Delayed Traumatic Rupture of the Spleen in a Patient with Mantle Cell Non-Hodgkin Lymphoma after an In-Hospital Fall: A Fatal Case That patient had an underlying blood cancer that made the spleen more fragile, but delayed rupture can happen in otherwise healthy people too. The takeaway is that a fall-related abdominal injury isn’t necessarily “cleared” just because you feel okay the day after.
Bowel perforation follows a similar delayed pattern. The initial injury may involve only a partial-thickness tear of the intestinal wall. Over the following hours to days, digestive enzymes and bacteria eat through the remaining tissue until the hole is complete. Pain escalates gradually, often accompanied by fever, increasing tenderness, and a rigid-feeling abdomen. The delay between the original fall and the full perforation can be anywhere from hours to over a week.3Journal of Radiological Science. Delayed Perforation of Jejunum in Blunt Abdominal Trauma
Who Is at Higher Risk
Certain people are more vulnerable to serious abdominal injury from a fall that might be harmless for someone else. If you’re on blood-thinning medications, the risk profile shifts. A study of in-hospital falls found that patients taking aspirin or clopidogrel had a higher risk of major hemorrhagic injury after falling, with clopidogrel carrying roughly double the odds compared to people not on any blood thinner.11PubMed Central. The risk of hemorrhagic complications in hospital in-patients who fall while receiving antithrombotic therapy Interestingly, warfarin alone did not carry the same increased risk in that particular analysis, though the clinical assumption that blood thinners in general make bleeds worse is not unreasonable.
People with enlarged spleens deserve special mention. Conditions like infectious mononucleosis (caused by the Epstein-Barr virus) can swell the spleen to several times its normal size, making it much more susceptible to rupture. Splenic rupture is one of the most serious complications of mono, and while it’s uncommon overall, the mortality rate can reach 5 to 10 percent if diagnosis and treatment are delayed.12PubMed Central. Spontaneous Splenic Rupture without Trauma: Clinical Insight from a Three-case Series A fall during an active mono infection, even a seemingly minor one, should be taken seriously if abdominal pain develops.
Children present a different challenge. Their abdominal walls are thinner and their organs are proportionally larger relative to their body size, meaning the same fall delivers more force to the organs. In pediatric patients, solid organ injuries, particularly to the spleen and liver, are more common in accidental falls, while hollow organ and pancreatic injuries are more typical of inflicted trauma.13PubMed. Pediatric abdominal injury patterns caused by “falls”: A comparison between nonaccidental and accidental trauma This pattern is something emergency physicians use to distinguish accidental from non-accidental injuries in children, a grim but necessary consideration.
Warning Signs That Need Emergency Attention
After any fall that impacts your torso, watch for these red flags over the next several days:
- Worsening pain: pain that improves initially but then steadily gets worse, or pain that spreads from one spot to a larger area, suggests an evolving injury.
- Rigidity: if your belly feels unusually hard or board-like and hurts to even light touch, that’s a sign of peritoneal irritation from bleeding or leaking gut contents.
- Shoulder pain: unexplained shoulder pain, especially on the left side, after a fall that hit your belly or lower chest can indicate a diaphragm or splenic injury.
- Dizziness or fainting: feeling lightheaded when standing, having a racing pulse, or actually passing out may indicate blood loss.
- Bruising patterns: bruising that appears around the belly button or on the flanks hours after a fall suggests internal bleeding tracking through tissue planes.
- Fever: developing a fever in the days after a fall points toward infection, which could mean a bowel leak.
Any of these symptoms after a fall warrants an emergency room visit. Don’t wait to see if they get better on their own.
How Doctors Check for Internal Injuries
If you go to an emergency room with abdominal pain after a fall, the first imaging test you’ll likely encounter is a FAST exam, a bedside ultrasound that takes just minutes and looks for free fluid (usually blood) inside your abdomen. It’s quick and doesn’t involve radiation, which makes it an ideal first step. Multiple studies show that FAST is highly specific, meaning if it says there’s fluid, there almost certainly is. Specificity values consistently land above 94%.14PubMed Central. Focused Assessment With Sonography in Trauma (FAST) as a Prognostic Tool in Blunt Abdominal Trauma: A Prospective Observational Study The limitation is sensitivity: FAST can miss subtle injuries, especially those without significant bleeding yet. One study found sensitivity around 75% for clinically significant abdominal bleeding in patients with pelvic fractures.15PubMed Central. Accuracy of FAST in detecting intraabdominal bleeding in major trauma with pelvic and/or acetabular fractures: a retrospective cohort study
When the FAST is negative but suspicion remains high, or when the FAST is positive and doctors need to know exactly what’s injured, a CT scan with contrast is the gold standard. CT is far more detailed and can identify the specific organ injured, grade its severity, and detect active bleeding. However, even CT isn’t perfect for ongoing hemorrhage. One study found that CT missed about a quarter of patients who were actively bleeding at the time of the scan.16PubMed. Sensitivity and specificity of CT scan and angiogram for ongoing internal bleeding following torso trauma This is why doctors sometimes repeat imaging or keep patients for observation even when initial scans look reassuring.
For most people who arrive at the ER after a fall with mild, stable belly pain, the combination of a physical exam, a FAST scan, and possibly lab work (looking for dropping blood counts or elevated liver enzymes) is enough to determine next steps. More severe or uncertain cases proceed to CT. The decision depends on the height of the fall, where you landed, how hard the impact was, your symptoms, and whether you have risk factors like blood thinners or an enlarged spleen.
Pelvic Fractures and Abdominal Pain Overlap
Falls are the most common mechanism behind pelvic fractures, and a broken pelvis can produce abdominal pain even without direct injury to the abdominal organs.17CirugÃa Española (English Edition). Pelvic Fractures With Associated Retroperitoneal Hematoma: Time Until Angioembolization and Results The pelvis has a rich blood supply, and fractures through the bone can tear vessels, creating a retroperitoneal hematoma, a large collection of blood behind the abdominal lining. This bleeding doesn’t spill into the abdominal cavity itself, so a FAST scan may look completely normal while the patient is losing significant blood volume into the pelvic space.
Pelvic fracture pain often localizes to the lower abdomen, groin, or hip, and may be confused with a bladder or intestinal injury. Older adults with osteoporosis are particularly susceptible to pelvic fractures from falls that younger people would walk away from. If you fell hard onto your hip or buttocks and develop lower abdominal pain, especially with an inability to bear weight or pain when pressing on the hip bones, a pelvic fracture should be on the radar.
When It’s Probably Not Serious
For every fall that causes organ damage, hundreds of falls produce nothing worse than a belly-wall bruise or a transient stress response. If you tripped, landed on your stomach or side, and have localized soreness that’s tender to touch but not worsening, with no dizziness, no shoulder pain, no fever, and no signs of bruising spreading under the skin, there’s a good chance you’re dealing with a muscular contusion. The pain should gradually improve over the first 48 to 72 hours. Ice, rest, and over-the-counter pain relief are usually sufficient.
Similarly, the adrenaline-and-vasovagal stomach cramping described earlier resolves relatively quickly. If your stomach hurt for 20 minutes after a fall and then went away completely, that pattern is reassuring. The key distinction is trajectory: pain that is slowly improving is much less worrisome than pain that plateaus or worsens. Keeping track of how you feel over the first 24 to 48 hours, rather than just assessing once and moving on, is the most practical thing you can do after a fall that jars your belly.