A Possible Work-Related Illness: Prepare a Factual Work History
If you wonder whether an illness may relate to work, prepare a factual work history for discussion with appropriate professionals. Record work and health events separately, then identify the question you need answered. This Pennsylvania page does not diagnose a condition, determine work causation or decide eligibility.
In this article
Begin with the question, not a conclusion
Use a neutral description such as “I want to discuss whether these work activities may be relevant to this health concern.” State what prompted the question: something you noticed, a provider’s comment or a document you received. Identify the source accurately.
Do not change a suspected connection into a confirmed one. DLI’s injured-worker guide explains that occupational diseases under the Act can involve conditions caused or aggravated by employment. That legal category is not a diagnosis and does not establish the cause of a particular person’s illness.
Build the work side of the history
List employers, job roles, work locations and approximate periods. Describe tasks you actually performed. If you remember a material, product or process, distinguish the name you know from one you are uncertain about. Identify an existing job description, work schedule or other record that may help confirm the account.
Separate direct observation from something someone told you. “The container label said…” and “a coworker told me…” are different kinds of information. Preserve any record lawfully available to you without guessing at chemical contents or taking material you are not entitled to access.
If the history spans more than one employer or location, keep the periods distinct. Do not choose which employer is legally responsible; the purpose is to give an accurate account for review.
Build the health side separately
Record when you first noticed a concern, when you discussed it with a provider and which records you already have. Label uncertain dates. Keep a provider’s recorded assessment separate from your own description and avoid paraphrasing an unfamiliar medical term into a stronger diagnosis.
This article does not recommend tests, treatment, stopping medication or changing work activity. Administrative preparation should support the conversation with a provider, not substitute for it.
Identify the professional questions
Your factual history may reveal gaps: an uncertain work period, a missing record, a term you do not understand or a disagreement between documents. List those as questions. Do not fill them with an online explanation simply to make the narrative look complete.
DLI’s guide contains separate occupational-disease and time-limit sections. Whether those provisions apply depends on the actual condition and history. Ask for individual review of reporting, timing and the applicable system rather than using this page to choose an injury date or calculate a filing window.
The WCOA hearing guide also distinguishes a worker’s own account from professional medical opinions and describes medical evidence as a possible part of disputed proceedings. A factual history is preparation material; it is not itself proof of a medical or legal conclusion.
Sources and scope
Checked 2026-11-09. These sources explain the Pennsylvania background identified below. The organizing methods and suggested questions on this page are editorial guidance, not filing requirements.
- PA DLI: Workers’ Compensation & the Injured Worker — Occupational Disease; Occupational Disease; Time Limits; introductory scope.
- WCOA: Important Information About the Petition Filing and Hearing Process (LIBC-387) — Page 1 Then What; page 2 medical reports and testimony. Brochure revised April 2018; use current WCOA information for administrative routes.
Related reading: Create a Work-Injury Timeline That Separates Events From Documents; Record What You Know, What You Remember and What Remains Uncertain; Read a Safety Data Sheet’s Product Identity and Revision Date. Browse the getting organized topic.