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  You know, even if parents love their children, at least they need to plan for their children. For example, the child's follow-up treatment fee does not need to be paid by the parents. After the donation, if the parent is weakened, how can the parent continue to raise the child? These practical problems need to be carefully considered by normal parents before making a decision. Besides, everyone has kind hearts, and ordinary people will definitely have concerns for the sake of donors. This is human nature.

   These people can know the benefits of bone marrow transplantation for the patient, and they can certainly know the risks of bone marrow transplantation for the donor. As a result, Ji Ho Ho rushes to ask the doctor to do a bone marrow transplant, but it is conceivable that it goes against the instinct of human beings and needs to be called a question mark. If you look more closely, you will find that the marriage relationship of this kind of family is generally unequal, and the anxious one must think about it and ask the other party to donate. Either think of someone else who can donate, and asking him/her to donate is impossible.

   Internal medicine students said this, and several surgical students understood the meaning at once.

   "Who is in a hurry to ask this? Is it the child's father or the child's mother?" Wei Shangquan asked.

   "I don't think the two of them feel that they need to donate." Zhao Zhaowei and Zhang Desheng shook their heads.

   "How do you know?"

   "Do they need to make a phone call if they want to donate themselves? Call after call, they are all mobilizing their family members to come to the hospital for examination."

   "Hey, do they know that, if this donation is made, the child has no siblings. The possibility of successful matching between parents and children is the highest, maybe fifty percent."

   "Do you think they don't know? They know that their blood type is different from this child. So they don't think they're the first in line."

  Student Wei touched his chest: "I think about this—"

   "You don't have to think so." The two internal medicine students said sadly to the surgical students, "We can predict that the family will definitely be noisy in the hospital next."

  Student Pan Shihua couldn't help but interject a scientific statement: "You must give this pair of parents science knowledge in advance. Hematopoietic stem cell matching is not based on blood type."

  Bone marrow transplantation is now officially renamed hematopoietic stem cell transplantation. According to the source, it can be divided into bone marrow transplantation, peripheral blood hematopoietic stem cell transplantation and umbilical cord blood transplantation. Bone marrow transplantation becomes a type of hematopoietic stem cell transplantation. It's just that the common people said that they were used to it and couldn't change it for the time being, and it continued to be called bone marrow transplantation. Hematopoietic stem cell transplantation from the very beginning only depends on the blood type, but mainly on the leukocyte antigen HLA.

  Transplantation, as I mentioned before, is the most afraid of rejection. Rejection is the body's immune system innately attacking foreign objects that have entered the body. Since the human immune system is not very intelligent, it can only be analyzed as a foreign body or not. Because of this, whether it is a disease or a doctor who wants to implant a foreign body into the human body, the human immune system must first recognize the foreign body. HLA can be regarded as one of the main signs of a human immune system to determine whether it is one's own.

   (end of this chapter)