An automobile accident or a gunshot wound, for example, can cause severe facial trauma that may require multiple surgical procedures and a considerable amount of time to heal.
quite a while
parasites?
yes if you run
No, it is not safe to run with injuries. Injuries must be given time to heal, enduring strenuous exercise while injured my further aggravate the injuries, causing them to worsen to debilitating levels. Consult your doctors.
Bone injuries heal very quickly because bone has a lot of direct blood flow. This direct blood flow delivers the nutrients needed to heal an injury.
Injuries in the brain do not heal because brain cells cannot grow back. On the other hand body cells (skin) do grow back.
No, they will eventually heal.
Cat injuries can sometimes heal on their own, but more serious injuries usually require medical intervention from a veterinarian to ensure proper healing and prevent complications.
The lip balm? I'm going to say quite a while.
Because they have a greater blood supply
Platelets
The neurons in the brain and else where do not normally regenerate. Skin cells do regenerate.