In medieval time's the battles were brutally bloody, no doc, no medicine . If you could walk and carry your weapon then you carried on. If not then you were most likely left for dead . When the army would set up camp then your wounds would be tended too & if you were the victor then "yes" troops would curry comb the battle field for weapons, loot, and wounded. No wounded would not fit in & besides it would just be another statistic on the after battle scroll.