A 9-year-old child suddenly experienced a headache and yellow skin without color, accompanied by nausea and palpitations two days ago. The doctor suspects thalassemia. Since neither parent has a family history of thalassemia, what is the likelihood of the child having the disease? It is recommended to have a blood test to confirm whether it is thalassemia. Pay attention to rest, and if the child shows signs of anemia, consider medication for adjustment.