If a knee, ankle or foot problem has changed how you walk, you can document that change with several kinds of evidence: treatment records, therapy notes, footwear and imaging, and statements from people who see you move. VA looks for a current diagnosis plus a medical link to your service-connected condition. Altered gait evidence helps show the story that the medical opinion explains.
What is an altered gait, and why does it matter?
An altered gait is a change in how you walk to avoid pain or because of limited motion. A limp caused by pain is called an antalgic gait. When one leg or foot hurts, you may shorten your stride, favor the other side or hike a hip. Providers sometimes point to that change as one way a service-connected injury could strain a hip or the lower back years later. It is only part of the case. Without a diagnosis and an opinion tying the conditions together, gait evidence alone is unlikely to settle a claim, and VA decides.
Where can altered gait evidence come from?
- Treatment notes. Primary care, orthopedic or podiatry notes that mention limping, favoring a leg, braces, a cane or orthotics.
- Physical therapy records. Descriptions of antalgic gait, uneven muscle strength or reduced range of motion.
- Imaging. X-rays or MRIs of a hip or spine that show findings your provider connects to the way you move.
- Your own records. A dated log of when stairs, standing or walking got harder, and when the second area started hurting.
- Lay statements. VA accepts statements from people who have seen you, on VA Form 21-10210 (Lay or Witness Statement) or VA Form 21-4138 (Statement in Support of Claim).
What should a lay statement say?
A good statement is specific and first-hand: how long the writer has known you, what they have seen (limping, favoring a leg, avoiding stairs), roughly when it started and how it has changed. It should describe what they observed, not diagnose you. For example, a spouse can say they have watched you favor your right leg for years and that you often rest your lower back afterward. A doctor can then address the medical link.
Does altered gait evidence prove the link?
No. It shows the facts. The medical link comes from a provider’s opinion that your new condition is at least as likely as not caused or aggravated by your service-connected one. Our guide on nexus letters for secondary conditions explains what that opinion needs. For the broader process, see secondary service connection explained and our overview of orthopedic secondary conditions.
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Frequently asked questions
Can I use a statement from my spouse or a fellow veteran?
Yes. VA accepts lay statements from people who have personally seen your limitations. They should describe what they observed and when, not offer a diagnosis.
Do I need a doctor to document my limp?
Provider notes help the most, because they are medical evidence. If your notes do not mention it, ask at your next visit and describe how your walking has changed.
Which VA forms are used for lay statements?
VA Form 21-10210 (Lay or Witness Statement) and VA Form 21-4138 (Statement in Support of Claim) are the forms VA lists for statements.
Will a limp alone get a back condition service connected?
No. You also need a current diagnosis and a medical opinion linking the conditions. VA decides whether the evidence is enough.
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