Many N-400 applicants have medical history from another country, old foreign-language records, or diagnosis letters that were translated informally. This guide explains how to organize translation, diagnosis, treatment history, and provider explanation so an N-648 package does not become confusing or inconsistent.
A weak translation can hide dates, diagnoses, treatment names, or functional findings. USCIS may not understand how the medical history supports the N-648 unless the record is clear.
Separate original records, certified translations, doctor summaries, medication lists, hospital records, and current U.S. provider notes. Build a short timeline rather than dumping records without explanation.
Watch for inconsistent names, dates of birth, diagnosis wording, untranslated stamps, missing translator certification, and a current N-648 doctor who did not review the translated history carefully.
Any foreign-language record submitted to USCIS should generally include a complete English translation with a translator certification.
A U.S. provider can review translated history, but the N-648 should also explain the provider’s own evaluation and why the condition creates testing limitations.
Do not ignore the mismatch. Prepare a clear explanation with IDs, prior names, translation notes, or corrected records where possible before submitting the package.