6 Surprising Medical Conditions That’ll Disqualify You From Service

Having been a recruit and a recruiter, I can tell you it's all about what you tell them. Unless your going into an MOS with a very high security clearance the realization is there not going to check! Regardless of what they threaten at MEPs. It's too costly to do a medical check on every one coming in and out.
I however, did almost get disqualified because of two scars on the back of my leg that look like surgical scars. But the truth of that was I sat on broken glass as a child, and pulled the large shards out myself and bandaged it myself for fear I was going to get my ass beat by my mom for breaking glass. So I had no medical records proving my scars were not due to surgery. So it was a battle of wits with the medical staff over it. You simply have to tell them to request medical records from the emergency room dating back more then 7 years (which is near to impossible) and by law they can't request or disqualify you for something that is beyond your control.

Sleepwalking is another one that'll require a waiver and that's rare to receive.

Disqualifying conditions vary with need. As long as the AVF fills the need, the DOD can be restrictive.