Even if the patient is relatively free from acute complications after the first three months, the body and its various organs still recover from the process of accepting the high dose chemo-radiotherapy and the blossoming of donor cells in the patient’s body. This can present as heart, lung or bone problems and chronic GVHD even after 3 months. The long term follow up clinic ensures close and regular monitoring for various organ functions as timely interventions can prevent any long term complication, that might happen.