Generally speaking, children with the following blood types often cause high jaundice: firstly, children belong to blood type A or B. When children belong to blood type A or B and their mothers belong to blood type O, it is easy for children to develop hemolytic jaundice, which will cause the jaundice index to rise progressively, and they can be treated with blue light irradiation or even blood exchange in a timely manner. Secondly, if the child belongs to RH-positive blood type and the mother belongs to RH-negative blood type, it will also cause the child to have severe hemolytic jaundice, which in turn will cause jaundice to increase.