Chest and Rib Pain After a Car Accident: The Seatbelt Mark
The day after the crash, your chest hurts when you breathe deeply, cough or roll over in bed. There is a purple stripe running from your shoulder to your hip: the seatbelt mark.
First, the important part: that seatbelt probably saved you from something much worse. But stopping you with the full force of the impact leaves a mark, and it is worth knowing when that mark is just a bruise and when it is something more.
Call 911 or go to the ER right away if you have:
Shortness of breath or chest pain that is getting worse · coughing up blood · belly or shoulder pain · pressure-like chest pain spreading to the arm, jaw or back · dizziness, fainting or an irregular heartbeat · seatbelt bruising across the belly with abdominal pain.
Do not drive yourself. Bring your medicines.
What the seatbelt can injure
The shoulder strap crosses the chest and the lap strap crosses the hips. In a sudden stop, all of your body’s force is concentrated on those two lines. According to the medical literature, the belt can cause anything from chest wall bruising to rib or sternum fractures and, less often, bruising of the lung or heart.
| Injury | How it feels | What is done |
|---|---|---|
| Chest wall contusion | Bruising and tenderness that improve over days to a few weeks | Physical exam |
| Bruised or broken rib | Sharp pain with deep breaths, coughing or laughing; sometimes a feeling or sound of a "crack" | Exam; an X-ray is not always needed |
| Sternum fracture | Pain in the center of the chest, over the bone, that gets worse with movement | X-ray or CT; sometimes heart tests |
| Lung or heart contusion | Shortness of breath, coughing up blood, irregular heartbeat or pain that does not ease | ER: imaging and heart tests |
A seatbelt mark on the chest does not always mean a serious internal injury, but it is a reason to get checked. And if the mark is across your belly, the evaluation needs to be more careful, because the organs in the abdomen can be injured.
The same belt also loads the shoulder and collarbone: see shoulder pain after a car accident.
How to look after yourself while it heals
If you have been checked and there are no red flags, the UK’s National Health Service (NHS) recommends:
Caring for bruised ribs
- Take pain relief as your doctor directs, so you can breathe and move.
- Apply a cold pack wrapped in a towel for the first few days.
- Breathe normally and take slow, deep breaths several times a day.
- When you cough, hold a pillow against your chest. Do not hold the cough in.
- Walk around and move your shoulders. Do not stay still for long.
- For the first few nights, sleep more upright.
- Avoid lifting, straining and smoking.
Why so much emphasis on deep breathing? Because when it hurts, people take shallow breaths and stop coughing, and mucus builds up. That can turn into a chest infection. Get care soon if you cough up yellow or green mucus, have a fever or chills, or the pain has not improved after a few weeks.
The mark is also evidence
Photograph the seatbelt bruise the same day and the days after: it changes color and fades. It is visible proof of the force of the impact and that you were wearing your belt. Many symptoms show up late, so tell the examiner everything. Read more in delayed symptoms after a car accident.
The short version
Chest pain after a crash is usually a seatbelt bruise or an injured rib, and most heal in 2 to 6 weeks. But shortness of breath, coughing up blood, pressure-like pain or belly pain are emergencies. Get checked, breathe deeply even when it hurts, and keep wearing your seatbelt every time.
Sources
- NHS — Broken or bruised ribs (symptoms, self-care and warning signs).
- StatPearls — Seat belt injury.
This article is informational and does not replace an individual medical evaluation. If you were in a car accident in the Salt Lake City area, Car Injury Clinic (Taylorsville, UT) offers same-day evaluation, free transportation and coordination with your attorney. Call 385-242-8571 or book an appointment.
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