Plaintiff David J. Fries appeals from the district court’s judgment granting defendant Chicago & Northwestern Transportation Company’s (C & NW) motion to dismiss on grounds that the statute of limitations had run on his action brought under the Federal Employers Liability Act, 45 U.S.C. §§ 51-60. For the reasons set forth below, we affirm.
I.
Appellant was employed by C & NW as a machinist from April 10, 1969 to September 15, 1987. In 1980 or 1981 Fries first noticed a decline in his hearing and he began experiencing tinnitus in either 1981 or 1982. *1094 Although both Fries and his wife stated at their depositions that they did not know his hearing problems were work-related, Fries admitted that in 1981 and 1982 the frequency of the ringing would increase toward the end of the work day, worsen throughout the work week, and would only subside after two days of quiet on the weekend. In order to recuperate, he needed silence for two hours after returning home from work because he “just felt terrible.” The Fries indicated, however, that they could not ascribe the hearing loss to a cause other than work. Both acknowledged that they suspected he had a hearing loss as far back as 1980 and 1981. At no time did appellant inform the railroad that he was having problems with his hearing, nor did he seek medical treatment for his hearing loss before 1985. In fact, not until appellant was required to submit to a full physical in May, 1985 before returning to work following unrelated medical leave was he diagnosed by a physician with hearing loss and informed that his employer would be notified.
Fries filed this action in federal district court on November 18, 1987 under the Federal Employers Liability Act, 45 U.S.C. §§ 51-60 seeking monetary damages for his hearing impairment. Fries alleged that C & NW acted negligently in requiring appellant to work near loud industrial noise and in failing to provide appellant with ear protection. Defendant moved to dismiss on grounds that plaintiffs action was time barred by FELA’s three year statute of limitations. 45 U.S.C. § 56. The railroad argued before the district court, and argues again on appeal, that Fries’ cause of action accrued in 1980 or 1981 when the alleged occupational disease became known to him and when he should have reasonably known the injury was work-related. Plaintiff asserted that his cause of action did not accrue until 1985 when he had actual knowledge, by way of diagnosis, that his injury was caused by his work environment.
The district court, applying the rule set forth in
Drazan v. United States,
II.
This court reviews de novo the district court’s grant of summary judgment.
Dribeck Importers, Inc. v. G. Heileman Brewing Co., Inc.,
Section 56 of FELA provides that' no cause of action may be maintained under the statute “unless commenced within three years from the day the cause of action accrued.” Accrual is defined in terms of two components, the injury and its cause, for statute of limitations purposes. In
Urie v. Thompson,
Following the guidance of the Supreme Court in both
Urie,
III.
Appellant argues that the district court erred in its application of the discovery rule, as enunciated above and by the district court, to the facts of this case. Fries first argues that because he had not been diagnosed in 1981 with a hearing loss and because his loss continued to worsen beyond that date, the statute of limitations was tolled until 1985 when a doctor diagnosed his hearing loss. This court should evaluate injuries like his that are cumulative in nature, continues Fries, differently from injuries resulting from a single, discrete act.
As an initial matter appellant's claim is correct. Whether the injury is caused by a discrete, discernible act or inflicted over time with an unknowable onset date does affect a court's evaluation of the accrual date in terms of the injury. Beyond that initial matter, however, Appellant's argument misses the essence of the rationale articulated in Uris and its progeny. The Uris Court sought to ameliorate the harshness of statutes of limitations when the injury is hard to detect at its inception. In order to do so the Court adopted the rule that in such circumstances the plaintiff cannot be said to know of the injury-although incurred or instigated at an earlier point in time-until it manifests itself to the individual. What the Uris Court did not do was provide an escape for plaintiffs who are aware that some type of injury exists yet who choose to ignore it by failing to seek diagnosis and investigate the cause. Kubrick, 444 U.s. at 120-21 n. 7,
Kubrick
says as much. The Court held in
Kubrick
that a plaintiff must act diligently and cannot wait until the injury
*1096
is actually made known to him by some unplanned incident, such as the unexpected medical diagnosis that occurred here. Rather, upon experiencing symptoms a plaintiff has a duty to investigate both the injury and any suspect cause.
Kubrick,
Appellant’s other argument, that he did not have actual knowledge of the cause in 1981 nor did evidence exist at that time which linked his injury to his work, must also be rejected. Actual knowledge by the plaintiff of causation is not necessary to a finding that a, cause of action has accrued.
Nemmers,
Appellant cites two additional cases in support of the proposition that actual knowledge is necessary before accrual occurs. This reliance is misplaced, however, as each is easily distinguishable from the case at bar. In
Dubose v. Kansas City Southern Ry. Co.,
Moreover the Dubose rule, even if applicable, does not help appellant. First, the deposition testimony clearly reveals that Fries knew, at a minimum, that work aggravated his hearing problem and that neither he, nor his wife, could ascribe the loss to any other cause such as his army service. Fries’ testimony also ruled out the possibility that any other illness could have caused the loss. Hence, this is not a case where several potential causes existed which could have caused or contributed to Fries’ hearing loss. Second, Fries never consulted a doctor about his hearing loss and, accordingly, cannot argue that he was misled in the same sense that Dubose was misled.
Finally, in
Emmons v. Southern Pacific Transp. Co.,
In sum, our application of the principles outlined above to the question of when Fries’ action accrued dictates a finding that the statute of limitations ran in 1984, three years after Fries knew, or should have known in the exercise of reasonable diligence, of both his injury and its cause. Fries began work for the railroad in 1969 and, although he alleges in his complaint that he was exposed to injurious noises since that time, the clock did not begin running on his FELA claim until the injury manifested itself and he should have reasonably known its cause in 1981. The district court determined that a reasonable person, when confronted with the facts Fries possessed in 1981 about his hearing loss and nature of the injury as described above, would have investigated the cause of his injury. We agree with this determination and find that the district court’s finding is clearly reasonable.
Evenson v. Osmose Wood Preserving Co. of America, Inc.,
IV.
Appellant makes his final argument — that the district court erred in applying the discovery rule at all — for the first time on appeal. This circuit has long held that a party may not raise an issue on appeal that was not urged before the district court,
Lektro-Vend Corp. v. Vendo Co.,
AFFIRMED.
