The signs and symptoms of acute leukemia in children depends on how much of the child’s healthy bone marrow cells have been taken over by leukemia cells, as well as whether or not the leukemia cells have clustered together in other organs—also called extramedullary spread.

儿童急性白血病的症状和体征取决于白血细胞取代多少骨髓细胞，以及白血细胞是否在其他器官里面会产生堆积，也称为髓外蔓延。

Most children will display signs (listed below) that the leukemia cells in their marrow are interfering with the production of healthy red blood cells, white blood cells, and platelets.

大多数孩子都将显示一些迹象(下面列出)，在骨髓里面的白血病细胞正干扰健康的红细胞、白细胞和血小板的产生。

Don't forget that many of these symptoms are also signs of more benign conditions.

别忘了，这些症状很多都是以更良性的迹象开始。

1) Anemia (low red blood cells)

1）贫血（低的红细胞）

When the leukemia cells in the child’s marrow crowd out the production of red blood cells, this may lead to a condition called anemia. In anemia, there are too few red blood cells available to carry oxygen around to the tissues of the body. If your child is anemic, they may be more tired or weaker than usual, look pale, or become short of breath easily.

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