What are complications for someone with acute lymphoblastic leukemia?

Many side effects: There are many potential complications for somebody with acute lymphoblastic leukemia (all). Some are related to the leukemia and some are due to toxicities of the treatment. Typical problems include infection, bleeding problems, nausea, vomiting, diarrhea, mouth sores, hair loss, fatigue, and need for blood transfusions. There can be effects on fertility as well.