Can husbands and wives with different blood types have children?

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     Ms. Han, who works in a Japanese company, successfully gave birth to a daughter weighing 7 kg in the hospital, but the skin on her small face and body began to turn yellow on the second day of her daughter’s birth. After seeing the doctor on duty, she told her that the child was most likely suffering from neonatal hemolysis caused by the incompatibility of the mother and baby's blood types. Sure enough, a laboratory examination revealed that her daughter had type A blood , while Ms. Han had type O blood . Why are the blood types of the mother and daughter different? Will hemolysis leave sequelae? Will it affect the child's growth and health in the future? The doctor comforted her and said that neonatal hemolysis is more common, so there is no need to worry.