Bro back to hospital

It's really a grief to hear and rather a shock actually that my brother admitted to hospital again yesterday ( and only came to know today after I made a phone call) for platelet transfusion. The recent blood test result shows that the range of platelet count below the minimum reading. I remember he just got back home after his second chemo treatment and now he is back to hospital. Sometimes i wonder how long can my brother has the patience of going back to hospital back and fro... I myself just hearing him going back there already I can understand the grief he is going through..