Jandreau v. Nicholson — lay evidence may be competent to establish diagnosis in limited circumstances

The veteran sought service connection for a shoulder disability and argued that the Board improperly rejected lay evidence concerning the in-service injury and resulting condition. The Veterans Court had broadly stated that “competent medical evidence is required” when the determinative issue involves medical causation or diagnosis.

The Federal Circuit rejected that broad rule. The court explained that lay evidence is not categorically incompetent merely because a claim involves medical matters. Instead, competency depends on the nature of the condition and the facts presented.

The court identified several situations where lay evidence may be competent and sufficient:
1. When a layperson is competent to identify the medical condition;
2. When the layperson reports a contemporaneous medical diagnosis; or
3. When lay testimony describing symptoms supports a later medical diagnosis.

The Federal Circuit emphasized that simple conditions observable by ordinary persons may be established through competent lay testimony, while more complex medical questions may still require expert evidence.

Jandreau became one of the foundational competency cases in veterans law and significantly expanded the recognized role of lay evidence in VA adjudication.

• Lay evidence may be competent to establish diagnosis or nexus in certain circumstances.
• Competency depends on the complexity of the medical question involved.
• Laypersons may identify observable conditions capable of ordinary observation.
• VA may not categorically require medical evidence in every diagnosis or nexus case.
• Lay testimony describing symptoms may support later medical diagnoses.

Jandreau established that competent lay evidence can sometimes prove medical facts, particularly where the condition is observable or later confirmed by medical professionals.

Jandreau is one of the most important Federal Circuit cases governing competency and lay evidence. It reshaped how VA evaluates veteran testimony in service-connection claims and is routinely cited across virtually every area of veterans law.

• Categorically rejecting lay testimony on medical matters.
• Failing to analyze competency separately from credibility.
• Requiring medical evidence for observable conditions.
• Ignoring lay descriptions later supported by medical diagnosis.

A veteran reports dislocating a shoulder during service and describes visible deformity and recurring symptoms afterward. Under Jandreau, that testimony may be competent evidence even before a medical opinion confirms the diagnosis.

Use Jandreau when:
• VA improperly dismisses lay testimony.
• Challenging competency findings.
• Establishing observable symptoms or injuries through personal testimony.
• Supporting nexus through symptom continuity and later diagnosis.

38 C.F.R. § 3.159(a)(2)