Internal Injuries
Internal injuries are damage to organs, blood vessels, or tissue inside the chest or abdomen - things like organ damage, internal bleeding, and thoracic or abdominal trauma - that are not always visible from the outside. Because symptoms can be delayed, these injuries are among the most dangerous after an accident, which is why prompt medical evaluation matters.
Last updated: 2026-07-07
This information is for educational purposes only and does not constitute legal or medical advice.
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Some symptoms appear immediately; others develop hours or days after the accident. Seek medical evaluation promptly even if you feel okay.
- Abdominal pain, tenderness, or rigidity
- Shoulder pain (referred pain from diaphragm irritation - can signal internal bleeding)
- Lightheadedness, dizziness, or fainting
- Rapid heart rate and low blood pressure (signs of hemorrhagic shock)
- Blood in urine, vomit, or stool
- Deep bruising of the abdomen or chest without obvious external cause
- Chest pain or difficulty breathing (pneumothorax, hemothorax)
- Swelling or firmness of the abdomen
Serious injuries can have lasting effects on your health, work, and daily life. Understanding these possibilities matters for your recovery and legal options.
- Organ damage requiring surgical repair or removal (splenectomy, bowel resection)
- Chronic abdominal or chest pain
- Increased infection risk after organ damage or surgery
- Diabetes or hormonal imbalances following pancreatic trauma
- Chronic kidney dysfunction following renal injury
- Psychological trauma from life-threatening injury and hospitalization
- Reduced quality of life due to dietary restrictions or ongoing medical management
Treatment options vary based on severity. Follow your healthcare provider's recommendations and document all treatment - it is important evidence for your claim.
- Emergency stabilization and fluid resuscitation for hemorrhagic shock
- CT scan, ultrasound (FAST exam), or diagnostic peritoneal lavage for assessment
- Emergency exploratory laparotomy or thoracotomy for severe injuries
- Angioembolization to control arterial bleeding non-surgically
- Intensive care unit (ICU) monitoring during critical phase
- Non-operative management with careful monitoring for select solid organ injuries
- Pain management and post-surgical care
- Long-term follow-up with specialist surgeons and physicians
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These accident types are frequently associated with this injury. Select an accident type to learn what steps to take.
- High-speed car, truck, and motorcycle accidents
- Seatbelt compression injuries in severe crashes
- Pedestrian accidents involving vehicle impact
- Falls from significant height
- Construction site accidents
- Blunt force trauma from defective products or equipment
Frequently asked questions
Internal injuries can cause abdominal pain, tenderness, or rigidity, shoulder pain from diaphragm irritation, lightheadedness or fainting, a rapid heart rate with low blood pressure, blood in urine, vomit, or stool, deep bruising without an obvious cause, and chest pain or difficulty breathing. See a doctor promptly after any high-impact accident, even without visible injury, since these signs can appear hours or days later.
Internal injuries are most often caused by high-speed car, truck, and motorcycle accidents, seatbelt compression in severe crashes, pedestrian accidents involving vehicle impact, falls from significant height, construction site accidents, and blunt force trauma from defective products or equipment.
Treatment typically starts with emergency stabilization and fluid resuscitation, along with imaging such as a CT scan, ultrasound, or diagnostic peritoneal lavage to assess the damage. Severe cases may require emergency surgery or angioembolization to control bleeding, followed by ICU monitoring, pain management, and long-term follow-up with specialists.
Internal injuries can lead to organ damage requiring surgical repair or removal, chronic abdominal or chest pain, increased infection risk, and in some cases diabetes, hormonal imbalances, or chronic kidney dysfunction depending on which organ was affected. Psychological trauma from a life-threatening injury and hospitalization is also common.