[candl]

The only medical condition I can think of which they would not disclose is pregnancy. That would lead to further questions and is controversial despite being very simple. Further evidenced by the fact that the affected crew member is unknown to the public.

[qgin]

That alone is enough reason to have a policy of never disclosing medical conditions.

[NitpickLawyer]

> Further evidenced by the fact that the affected crew member is unknown to the public.

Nope. On a previous mission one of the crew members had to sped a night in hospital after touchdown. They never said who, or what for. This is standard procedure, and for good reason.