I have just started watching GoT. I came across the end of Season 1 where Khal Drogo defends Khaleesi and get himself slashed by the sickle across his chest.
Now as per common knowledge, Khal Drogo had become the leader by not losing in any fights. But a warrior/soldier who has been in multiple fights will always have wounds or scars from old wounds. However, in case of Khal Drogo, we practically see no sign of any injuries on his body. To add to this, it is seen that many decisions/disputes within the tribe are settled by combat. Judging by Khal's position, he must have even faced many internal fights. Thus, the lack of any scars is a bit unsettling for me. Also, Dothrakis don't use metal armor thus increasing the chances of injuries even in victories.
Keeping apart the the observations that a great warrior such as Khal has never been injured (which is still disturbing in my mind), can it be said that Khal lacked the awareness of injuries? Had he been aware about the problems an open wound can create, he himself would have called medics to get it cleaned and cured.