What to do if i think my friend has munchausen syndrom. how do i confront her or her family?

Who is in danger?: If this is munchausen's by proxy -- an adult injures or sickens a child or lies, all in order to get them admitted to the hospital -- phone child protective services and fill out paperwork on them. If this is simply a person who is so desperate as to seek warmth by pretending to be sick, the family is probably already dysfunctional and drama is unlikely to help & may be disastrous -- be a friend.