• Check with a doctor if your child has any of the following:Fever with or without an infection.Night sweats.Shortness of breath.Weakness or feeling tired.Easy bruising or bleeding.Petechiae (flat, pinpoint spots under the skin caused by bleeding).Pain in the bones or joints.Pain or feeling of fullness below the ribs.Painless lumps in the neck, underarm, stomach, groin, or other parts of the body.