I need to know what kind of medical conditions can develop from a traumatic brain injury.

Can you narrow it down any? What sort of traumatic brain injuries? Why are you asking? Were you or someone close to you injured?

First what level, "brain injury" is different in every case. ** I work in a hospital that specialises in brain injury.

From effecting speech to effecting use of arms, legs, normal body functions.

So list any and every medical condition known and it could be a direct or indirect problem developed form brain trauma