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June 2, 2025 · Richard T. Swenson, M.D.
Delayed Symptoms After a Car Accident: What to Watch For
Dr. Swenson explains why car accident injuries often go unnoticed for 24–72 hours, which symptoms to watch for, and why seeing a doctor promptly protects both y
Frequently asked questions
Why do car accident symptoms appear days later?
Adrenaline and cortisol released during a crash suppress pain signals. As hormones clear, inflammation builds and symptoms become apparent — often 24 to 72 hours later.
What delayed symptoms should I watch for after a car accident?
Headaches, neck stiffness, back pain, numbness or tingling in the limbs, dizziness, and cognitive changes like difficulty concentrating can all appear days after a crash.
Injured in an auto accident? We can help
Accident Care and Treatment Center has been exclusively dedicated to auto-accident injury since 1995. Our Oklahoma City clinic at 3209 NW Expressway provides a complete continuum of care under one roof.
Under one roof
- Licensed medical doctors, not chiropractors, who diagnose, prescribe, and direct care
- On-site imaging: digital X-ray, MRI, CT, ultrasound, and fluoroscopy, all under one roof
- Physical therapy: licensed DPT therapists coordinate directly with your physician
- Interventional pain management: trigger point injections, nerve blocks, and epidurals when needed
- Direct insurance billing: we bill the at-fault driver’s insurance, so most patients pay nothing upfront out of pocket
- Same-day appointments and walk-ins welcome: Monday through Friday
When to seek evaluation
- Experts say the best time to see a doctor is within 72 hours of the accident
- Neck, back, shoulder, or head pain, even if mild or delayed
- Headaches, dizziness, or light/noise sensitivity
- Tingling, numbness, or weakness anywhere in the body
- Reduced range of motion or stiffness
- Difficulty concentrating, memory changes, or sleep disruption, including signs of traumatic brain injuries
Get checked out today
Call (405) 842-3209 or walk in during business hours. We serve Oklahoma City, Edmond, Norman, Moore, Midwest City, Del City, Yukon, and Mustang.