Are diabetics also banned from service (even after being diagnosed post-enlistment)? Many (FAR more than the total number of trans) need daily insulin shots.... how is that handled? medical discharge?
There are medical conditions which are contraindicators for certain duty, such as deployment on submarines. But you get sub dis-qualified and moved to shore billets or changed to a non-submarine rate.
Other conditions require billets near major hospitals, or within Continental United States, or if overseas, not at certain bases or facilities.
Basically, once they've paid for your schooling, they really would like to retain you, if they can wring another ounce of use out of you.
Usually on a case-by-case basis.
I saw one guy get shot in the ankle, destroyed the joint, he was disqualified subs, permanently. All those ladders...
An idiot on the crew only heard 'shot foot permanent sub disqual.' Shot himself in the foot, thinking this meant a permanent shore billet. But not at a major joint. Or even at a knuckle.
He made patrol with us, wearing a walking-cast. His choice was make an uncomfortable patrol or get written up for malingering...
Seen several guys permanently disqualified subs but we kept bumping into them in the trainers...