Hi, my sister has had problems with her plaletes in the last 2 years. She has been admited to the hospital because of her plaletes dropping. She gets bruises on her body and that's how she finds out her plaletes are down. Recently, she her legs have started to swell up and she has a lot of pain in her joints. Does this have any connection with her history with plaletes??? This is all very new for me and I am trying to understand what is wrong with her? She has gone for numerous tests but has no conclusion yet! Any advise is greatful. Thanks.