My brother met with an accident last week,his liver got bleeding and done operation and removed half last week.but still it's getting bleeding in liver.why it's happened,is that serious problem?

Yes this is a serious condition as a person has only one liver. The liver could have been damaged due to blunt trauma from the accident.

His doctor should be able to answer any of your specific questions. The liver is a delicate organ, but a person can live a normal life with only half of one.

I wish for your brother a healthy recovery.