The common symptoms of childhood leukemia in the early stage are: anemia, bleeding, fever, bone pain and so on. 1. Anemia: Symptoms of anemia can appear at an early stage, and as the disease worsens anemia can worsen with fatigue, weakness, chills, dizziness, shortness of breath and pale skin. 2. Bleeding: Symptoms associated with low platelet count include easy bruising and bleeding, such as frequent nosebleeds, bleeding gums, and bruises on the skin. 3. Fever: Fever is a typical symptom of leukemia. A low normal white blood cell count results in decreased immunity, and the associated symptoms are mainly fever caused by infection. 4. Leukemia cell infiltration: symptoms such as bone pain or joint pain may occur. Parents are advised to consult a doctor immediately if the above symptoms occur in their children, and to identify the cause of the disease and give appropriate treatment to prevent the disease from developing into a life-threatening condition.