Information regarding the health status of public figures, including Barron Trump, is generally protected by privacy laws. Public figures and their families have a right to medical privacy. Therefore, details about any specific medical conditions he may or may not have are not typically released to the public.
Maintaining the privacy of medical information is a standard practice. Releasing such information would be a breach of privacy and potentially violate legal and ethical standards. This holds true regardless of the individual’s public profile.