After you give birth?? what happens to the?? quick answers please?

okay my friend gave birth in her bathroom and he baby was delivered in the toilet. she told me after the babay came out the umbilicla[--typo] cord jus suck baq in tu her body. what is it supposed to do. was it supposed to do that. or was it supposed tu fall out. does she needtu go to the hospital. serious answers because im worried about her. thanx..