Symptoms of childhood leukemia include fatigue, weakness, dizziness, shortness of breath, pale skin and feeling cold. Your child may also be prone to infections, easy bruising and frequent nosebleeds. Childhood leukemia can also result in bone or joint pain, loss of appetite, weight loss or swelling in the lymph nodes, face or arms. If your child is experiencing any symptoms, it’s important to seek early treatment for childhood leukemia. The sooner it’s diagnosed, the sooner your child can start treatment.