Yes, you can request a B-2 extension for medical reasons. Include medical records and a doctor’s letter explaining why treatment in the U.S. is necessary.

USCIS allows extensions of stay due to medical conditions, but you must apply before your visa expires. You’ll need to submit Form I-539 with strong supporting evidence. It's important not to delay,. Timing really matters in cases like this.

You have a valid reason to request a stay extension based on medical necessity, and USCIS reviews these on a case-by-case basis. Include documentation from your physician, proof of how you'll cover treatment costs, and a letter explaining the situation. Filing before your I-94 expires is key, even if you haven’t received a decision yet. If your extension is pending, you’re usually allowed to remain while it’s processed. Just don’t begin any activity that could violate the terms of your visa.