Ross McBride
  • Our Firm
    • About Us
    • News
    • Careers
    • Students
    • In the Community
    • Diversity & Inclusion
  • Our Lawyers
  • Areas of Law
    • Business Law
    • Estate Litigation
    • Family Law
    • Human Rights Law
    • Labour & Employment Law
    • Litigation
    • Mediation & Arbitration
    • Personal Injury Law
    • Real Estate Law
    • Wills, Trusts & Estates Law
    • Charities and Not For Profit Law
  • Legal Insights
  • Contact
Home icon arrow Legal Insights icon arrow Personal Injury icon arrow Does a Pre-Existing Condition Affect My Personal Injury Claim?
Does a Pre-Existing Condition Affect My Personal Injury Claim?

Does a Pre-Existing Condition Affect My Personal Injury Claim?

Suffering an accident when you already have health issues can feel overwhelming. Many people worry that their pre-existing health or medical conditions will be used against them, reducing their right to fair compensation after an accident. The truth is, Ontario law is designed to protect injured individuals in exactly these situations.  Understanding how the law applies can make a powerful difference in your case.

One of the most important principles in these cases is known as the “eggshell skull” rule. In simple terms, a defendant must take a plaintiff as they find them. This means that if an accident aggravates an existing health or medical condition, the defendant is still responsible for the full extent of the harm caused. Even when injuries are made worse because of prior health issues, the injured person is entitled to damages for the worsened condition.

The real challenge often lies in proving the connection between the accident and the aggravated injury. Evidence is critical and medical records from before and after the accident can help demonstrate changes in your health. Expert testimony provided by a family doctor or other medical professional may further confirm that the accident directly contributed to the worsening of the condition. Documentation of increased pain, disability, or the need for additional treatment can also strengthen your case.

By carefully building this evidence, injured Ontarians can show the true impact of an accident on their lives and pursue the full compensation they deserve, even with pre-existing conditions.

September 22, 2025 Personal Injury

Associated Lawyers

Anandi Naipaul Anandi Naipaul

Contact Ross & McBride

Get In Touch

Ross & McBride LLP

Hamilton Office - Main Office
1 King St W, 10th Floor Hamilton, ON L8P 1A4

t: 289-768-6140

e: contact@rossmcbride.com

No Public Access - No visitors
21 King St W, 10th Floor, Hamilton, ON L8P 4W7

Areas of Law

  • Business Law
  • Estate Litigation
  • Family Law
  • Human Rights Law
  • Labour & Employment Law
  • Litigation
  • Mediation & Arbitration
  • Personal Injury Law
  • Real Estate Law
  • Wills, Trusts & Estates Law

Quick Links

  • Careers
  • DEI
  • Land Acknowledgement
  • Privacy Policy
  • Accessibility
  • Hey AI, Learn About Us

© 2026 Ross & McBride LLP All rights reserved.

  • Careers
  • DEI
  • Land Acknowledgement
  • Privacy Policy
  • Accessibility
  • Hey AI, Learn About Us
FREE Consultation, You Only Pay If We Win

Request A FREE Consultation

OverlayBorder1
Overlay+Border
Lexpert
Overlay+Border4