Causation: Was There a Medical Mistake – And Did It Matter?

Many people are surprised to learn that proving a medical mistake occurred is only part of a successful medical negligence claim.

In addition to showing that a healthcare professional provided substandard care, it must also be established that the mistake caused, or materially contributed to, the injury suffered.

For example, a delayed diagnosis, treatment error, or surgical mistake may amount to negligence. However, if the patient's outcome would have been the same regardless of the error, a claim may not succeed.

This legal concept is known as causation, and it is often one of the most complex and disputed aspects of medical negligence litigation.

At Kearney Law, we work closely with independent medical experts to investigate not only whether a mistake was made, but whether that mistake changed the outcome.

Because in medical negligence cases, the key question is often not:

"Was there a mistake?"

But:

"Did that mistake make a difference?"If you believe you have suffered harm as a result of medical treatment, our team can advise you on whether you may have grounds for a medical negligence claim.

Related Articles

*In contentious business, a legal practitioner may not calculate fees or other charges as a percentage or proportion of any award or settlement. This statement is made in compliance with section 149 of the Legal Services Regulation Act 2015 and the Legal Services Regulation Act 2015 (Advertising) Regulations 2020 (S.I. No. 644 of 2020).
© Copyright 2026 Kearney Law.
menuarrow-right