What Is Causation?
Causation is the connection between an act or omission and the harm that follows. In a surgical error claim, causation requires evidence that the medical mistake caused or substantially contributed to the patient's injury. The analysis separates the alleged error from the underlying condition, expected risks, and later events that may have affected recovery.
Quick Facts About Causation
Category
Legal element
Used for
Linking conduct to harm
Common confusion
A complication is not automatically proof of causation
Also called
Cause and effect, Legal causation
Often discussed with
Surgical Error Representation
Key Takeaways About Causation
- Causation links conduct to a specific injury.
- Medical records often help trace that connection.
- A bad outcome does not automatically prove causation.
How Causation Works

Causation connects the alleged surgical error to the injury described in a claim. The analysis asks whether the injury would have occurred without the error and whether the claimed harm follows from that conduct. Medical records, operative notes, diagnostic images, and testimony may help trace the sequence of events.
Related glossary terms: Proximate Cause, Medical Malpractice, Medical Records.
Proximate cause addresses whether the connection is close enough under applicable law to support liability. Lawyers compare the patient's condition before surgery with the patient's condition afterward. They also examine the medical reason for the procedure, the care provided during treatment, and later events that may have contributed to the injury. A poor result alone does not establish causation because some outcomes arise from the underlying condition or known treatment risks.

From the Atlanta Auto Law team
When we review causation, we organize the medical timeline and compare the expected course with the patient's actual condition. We examine operative records, follow-up notes, imaging, and qualified medical opinions to identify whether the alleged error connects to the claimed injury. We also separate the surgical outcome from unrelated conditions or later events.
Causation in Practice: A Real-World Example
A patient undergoes surgery, and a nearby nerve is injured during the procedure. Causation may exist if medical evidence connects the nerve injury to the surgical error, rather than to the condition that required surgery or a later event.
Related Services
Related Terms
Proximate Cause
Proximate Cause is a legal connection between conduct and harm that makes the conduct sufficiently related…
Medical Malpractice
Medical Malpractice is professional negligence by a healthcare provider that causes harm through a treatment decision…
Medical Records
Medical Records are written, electronic, or recorded information about a patient’s care. They may document symptoms…
Expert Witness
An Expert Witness is a qualified professional who gives specialized opinions to help a court understand…
Atlanta Auto Law
Have Questions About Causation?
Contact Atlanta Auto Law for practical guidance on Causation and related personal injury attorney work in Georgia.
