I like your reply; by no means will I disagree with what you stated because it has merit. I could stand to be corrected, given the particular circumstance of the subject (concussions due to blunt force trauma and not IEDs, concussive waves due to explosions). The idea I went off of maybe misplaced as it is based off of research done by the military in regards to TBI from IED blasts. But, given that we are talking about brain trauma, it still may have relevance. Part of my thought process I must admit, is theorizing, but not without reference to real life both observation. Still, this in itself (a theory) may prove to be its downfall.
I did mention severity. It was my bad for not really clarifying on this and not really watching my wording. With severity comes the idea that it is easier to re-injure something until it is back to full capacity. Also (here comes the observation part), if we take a look at Fernando Vargas as one particular example, we can see that head trauma accumulates/compounds over time. Even with surgery, rest time and rehabilitation, we know that a tendon will never be the same (lose MAX functional capacity) once torn or severely injured. I know it's a completely different body part, but the idea behind it remains the same. The reason why I believe you cannot completely write-off this idea of mine is because the main subject still remains in tact, brain trauma/damage. There is not enough research done within neuroscience to definitively say that concussive blasts do not have a similar if not familiar effect on the brain as does blunt force trauma. The obvious difference I see between the two is the rate at which the (wave) of energy is imparted/travels through the brain, although TBI from explosions may sometimes include blunt force trauma to the brain due to the kinetic impact of the blast.
And of course...I will definitely agree w/ you 100% on not taking an anticoagulant when there is bleeding.
Personally, I would return to training, as soon as symptoms subside or no longer give me a problem. But, I stick to what I said in that it is a good idea to avoid sparring and activities that would/could jolt the head back sharply. You're right, though, I should reiterate that stopping training completely is a bad idea. I was too quick too quick in typing and did not provide enough insight and clarification. I will reiterate and say that one could resume hitting pads/bags working other technical aspects that do not put the brain in a compromising situation.
I really appreciate your sentiments and input; you made some great points. It made me want to read up more on the subject and it got my brain thinking.
Please, add further insight if you'd like. It's always good to hear information directly from someone in the field of study.