How to tell 10-year-old daughter that she is seriously ill?

I can only say that 10-year-old girls are too arrogant. If you tell him that he is very ill, he won't understand. You can't understand, so it's no use telling him now. He can't understand that there is no need to tell him so much before he is fully sensible. Just take him to regular medical treatment or hospitalization every time. If you talk too much, he won't understand, which will increase your troubles. He'll ask you this and that.

In the past, there was a girl in our neighbor's house next door who was basically seriously ill, so she spent most of her time in the hospital when she was seriously ill. Tell her the hospital is his home.