Will medical discharge revoke my citizenship?

If you already received your US citizenship, it cannot be taken away absent material fraud or misrepresentation in having obtained it. It certainly cannot be taken away for a  condition which arises following the grant. Due to the limitations of the Lawyers.com Forums, Alan Lee, Esq.'s (the "Firm") participation in responding to questions posted herein does not constitute legal advice, nor legal representation of the person or entity posting a question. No Attorney/Client relationship is or shall be construed to be created hereby. The information provided herein by the Firm is general, and requires that the poster obtain specific legal advice from an attorney. The poster shall not rely upon the information provided herein as legal advice nor as the basis for making any decisions of legal consequence.