# Fox v. Ethicon Endo-Surgery, Inc.

Canonical: https://californiapersonalinjurylaws.com/cases/fox/

Supreme Court of California, 2005. 35 Cal.4th 797, slip op., pp. 1–2.

Reviewed by Andrew (Andy) R. Gillin; publisher reported approval 2026-11-04. The original review date was not supplied.

## Case background

After surgery, a patient sued over her care. She later learned that a device may have caused the harm and sought to add a claim against its maker.

## Question before the court

Could the delayed-discovery rule apply to a cause of harm that a reasonable earlier check would not have revealed?

## What the court decided

The court allowed the claim to be assessed under that rule. It required a factual basis for why a reasonable earlier investigation would not have found the particular cause.

## Limits

A later diagnosis does not always give you more time. The facts and steps you took to find the cause still matter.

## Opinion

https://law.justia.com/cases/california/supreme-court/2005/s121173.html