Will subdural hematoma kill me?

It might: If a subdural is big enough & goes untreated, there may be serious consequences. Most, though, develop slowly, and if they are not to big they may be monitored. If big enough, they are treated surgically.

Depends: The mechanism of injury, size and location determine any consequences of a subdural hematoma. Neurosurgical consultation is strongly recommended.

It can: If left untreated. Small subdural can be left alone, particularly if they do not cause pressure on the brain or cause symptoms such as a headache. Larger subdurals need to be drained because of pressure on the brain. They should also be monitored to make sure they are not groing. Prevention of the primary cause should be undertaken too.