Aplastic anaemia. Sir, i need help!

Respected madam/ sir, I need help regarding aplastic anemia. What kind of ailment is this, because one of my close friend is suffering from the same, and he is been advised to transplant his bone marrow, is this a serious condition if his nostrils or gums are blooding ?. Should we take him to hospital at once?, he is been recently hospitalised and treated with requisite blood transfusion, even some kind of ATG injections were given to him to get active his Bone marrow, but it went in vain. Now we are only able to transfuse his blood every now and then because of his financial condition, the whole family is dependent on him, if he losses his life there will be huge impact of his nonexistance, we have to keep him alive, but finding it very hard. Please suggest me where and whom we should approche.